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Only on Gameday

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An ALL-NEW sports romance from New York Times bestseller Kristen Callihan with high emotional stakes and a slow-burn, steamy heat level.

A “fake” fiancée is just the trick to help a bad-boy football player clean up his image. Trouble is, there’s nothing fake about the way August feels about his “pretend” fiancée.


August Luck is on the brink of greatness: top NFL draft pick, a great team, multiple corporate sponsorships, but he keeps messing it up with bonehead moves. After his latest shenanigan goes viral, everyone is telling him to get his act together.

Penelope Morrow grew up with August. Their mothers were best friends. Unfortunately, Pen always fled the room with a look of disapproval on her pretty face whenever August was around. But Pen has a problem too: she inherited her grandparent’s house and can’t pay the estate tax.

On a whim, August decides a temporary public engagement is the solution to both their problems—he’ll pay her taxes, and she’ll help his image. Win-win.

But, when it comes to Pen, nothing is certain or safe. Because Pen isn’t so reserved anymore. This time, she’s smiling back at him. And he likes it. A lot. Will they each survive the ruse unscathed?

Game on...

Perfect for readers who love:
• Shy girl/sunshine boy
• Hero in hot pursuit
• Unrequited love + epic yearning
• Fake dating (or is it?)
• Delicious slow-burn romance
• Childhood nemeses (all grown up)

416 pages, Paperback

First published January 6, 2026

230 people are currently reading
12188 people want to read

About the author

Kristen Callihan

29 books14k followers
Kristen Callihan is an author because there is nothing else she'd rather be. She is a RITA winner and three-time nominee and winner of two RT Reviewer's Choice awards. Her novels have garnered starred reviews from Publisher's Weekly and the Library Journal, as well as being awarded top picks by many reviewers. Her debut book FIRELIGHT received RT Magazine's Seal of Excellence, was named a best book of the year by Library Journal, best book of Spring 2012 by Publisher's Weekly, and was named the best romance book of 2012 by ALA RUSA. When she is not writing, she is reading.

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5 stars
203 (25%)
4 stars
356 (45%)
3 stars
176 (22%)
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37 (4%)
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12 (1%)
Displaying 1 - 30 of 488 reviews
Profile Image for Christy.
4,554 reviews35.9k followers
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January 5, 2026
4 stars

What a fun fake dating/sports romance. I enjoyed reading Penelope and August’s story. The Luck siblings were a fun family and I hope we get some books about them!

August is a rookie playing his first season of professional football. He’s made some questionable decisions lately, and decided that ‘settling down’ would be good for his image. Penelope is a family friend he’s basically known his whole life.

Penny has always been closer to the other Luck siblings than August but she gets to know him on a deeper level the more time they spend together. I enjoyed their banter and relationship. The book was great for me and I especially loved the narration!
Audio book source: Netgalley
Story Rating: 4 stars
Narrators: Teddy Hamilton & Maxine Mitchell
Narration Rating: 4.5 stars
Genre: Romance
Length:13h 28m


Profile Image for Dayle (the literary llama).
1,558 reviews187 followers
December 6, 2025
I don’t know why this isn’t the start of a new series. It has no connection, and so much time has passed, to the previous books and spends a lot of time setting up an entirely new cast of characters. It’s an odd choice. (UPDATE: The book has now been removed from it’s listing as Book #5 in the Game Day series)

There’s a lot going on and it doesn’t have a good flow. A little bit of everything just thrown in and mixed about. I craved more focus and a solid build. There were many times throughout where I feel like a previous book or backstory were missed.

The constant “he’s finally paying attention to me! But that doesn’t mean he likes me. He’s flirting with me! But obviously he doesn’t mean it. He’s stating his attraction to me! But that’s not real.” was sooooo tiring.

The sandwich. A freaking sandwich! I will not give spoilers… but I’ll just say this was the moment the book hit two stars ‘cause I was laughing so much at the absurdity. I cannot.

Listen, I LOVE Callihan’s novels. Her VIP series is one of my faves and I’ve reread the earlier football books numerous times. But I don’t know what happened here. This was not it.

* I received a free early copy from the publisher.
Profile Image for Mel.
1,704 reviews4 followers
December 13, 2025
While I am delighted to see Kristen Callihan back with a brand new book (it's been several years since her last book), I did not expect to read two books this year with the niche trope of a football player secretly in love with his childhood friend and asking said friend to pretend to be his fiancée in order to rehab his reputation and public image, but here we are.

I wanted to like this book, in fact, I wanted to love it. But the fact that it took me 5 days to finish this book is never good sign. For a lot of this book, I was bored. I discovered Kristen Callihan 15 years ago when I discovered New Adult romances. I read a lot of sports romances in that time featuring characters still in or fresh out of college, in their early 20s. However, it's not particularly a subgenre I enjoy as much anymore and these characters (he's a 23 y.o. NFL rookie, she's 22 and still in college) read as very, VERY young to me.

Secondly, he does something wholly out of character at the very beginning of this book but the book really doesn't delve very deeply into why he acts so completely out of character except for a quick throwaway line towards the last quarter of the book. There are signs of anxiety and the pressure to perform at a high level getting to him which would be great emotional avenue to explore, and this author has done remarkable work in the past exploring mental health issues in her books so I'm entirely unsure why she did not delve a little deeper in this book. A lot of this book dragged in some places but also felt like a first draft that needed more depth in others, which is frankly uncharacteristic for her.

Then August asks Penelope to be his fake fiancée to rehab his image and yet, neither one of these ding dongs remember to tell their family that they're engaged and that it's fake before August announces his engagement live on the air in a press conference. So obviously, his siblings, May and June show up and his other siblings March and January are like "WTF?!?" as is her mom who thankfully is not named for a month. When May and June show up, they immediately assume that Penelope, a woman they have known all their lives since both their moms are besties, is only after August for his money. That felt really offensive to me.

Penelope, who has her own issues with a father who abandoned her and left her mom for the nanny, has inherited a home from her late grandparents that is worth a lot of money. Except, to keep the house, she must pay the property taxes which are well beyond her means. But she’s adamant that she won’t accept August’s financial help. Penelope also spends much of this book wondering how a guy like August could be possibly interested in her, a young beautiful woman and this incessant “I’m just a nobody” mentality gets really old and tired real fast.

These two encapsulate the idiots in love trope in that they have both been in love with each other for years and have treated the other like they don’t even like each other. And that is really the crux of the whole story, that these two have secretly been pining for the other. And when that reveal happens at the very end, it almost feels anticlimactic.

The sex scenes are hot, in typical Kristen Callihan fashion (lots of good girls, etc.) but there’s this reveal of Penelope being a virgin who has never even been kissed until she and August have their first fake kiss for appearances sake because she couldn’t even imagine being with anyone other than August. (August however is not a virgin, shocking absolutely no one).

The other thing that really bothered me about Penelope’s character development is that she has no other friends outside of August’s family. Even the one other friend she makes in this book is due to August (his teammate’s movie star girlfriend). She’s not particularly close to her roommate who eventually kicks her out. She’s labeled shy and has spent almost 4 years in college and has not managed to cultivate even one single friendship in that time? But she loves entertaining and cooking for people and none of this really adds up for me.

My final thought – why is this part of the Game On series and not just kicking off a brand-new series? I’m assuming (though I could be wrong) that the rest of the Luck siblings will also get books (I am invested in January’s story and was hoping for a second chance romance for him with his ex-fiancée, but that hope has been eradicated for REASONS).

Anyway, I have ranted long enough about this book.

ARC from publisher, review is all mine.

Content notes: toxic father, car accident with side character off page in the past, anxiety related to professional pressures; FMC gets physically attacked and her motorcycle is destroyed
Profile Image for Sam Lue.
248 reviews6 followers
October 1, 2025
2/5 Stars

Penelope goes home with the intention of visiting her childhood friends. She wasn’t counting on their older brother, August, being home. After an embarrassing video of August goes viral, he’s asked to clean up his act. August comes up with the bright idea of proposing to Penelope because there is nothing more real than a fake engagement.

Only on Gameday is a fake dating book. I found this book juvenile for my personal taste, with its countless nicknames for each character and long text threads throughout.

Several characters are full of charisma, and I think there was too many to create well rounded relationships with all of them. The pacing was steady, yet it went nowhere and everywhere all at once. I felt there was no defining climax. It made the book feel like there were chapters missing. The Luck family is great and full of life. I’m wishing the best for their stories if those are to come!

A warm thanks to Kristen Callihan, Harlequin Trade Publishing, and NetGalley for this ARC!
Profile Image for Katie’s Bookshelf.
589 reviews102 followers
January 14, 2026
3⭐️
Kristen Callihan has written some of my old favourites- The Game Plan, Fall, Exposed. Books that I have read multiple times. So I was THRILLED when she announced she would be releasing this book, her first in a few years. And honestly I think my expectations being too high might have had a lot to do with my disappointment here, because I didn't enjoy this at all

There was nothing glaringly awful here- just a long list of small things that totalled to a bad book. I'm also the type of reader that once I get that "oh I don't like that" feeling and start to question if I will like a book, it's really hard to win me back over. And this book opened on the back foot for me.

We start with Penelope on the phone with her mom, driving to see the Luck family. We're given some small details right off the bat but not enough for the full picture- we're told that Pen is super close with the Luck family, but somehow hasn't seen any of them in years. She walks in like she's a fixture at their house but she didn't grow up in the area? And her mom doesn't currently live there? And her grandparents live in California? So how exactly and they all so close

Then there's the Luck family banter. I get that KC was going for this super close family who playfully ribs each other with love, but it did NOT work for me. It all felt so stilted and awkward. Every Luck child is this louder-than-life character in a way that also didn't feel authentic. Their family shenanigans and text conversations went on the entire book and just added more noise in a negative way for me

Honestly with everything else wrong with this book the lack of chemistry between Pen and August was the last thing on my mind. Again, they are supposed to be super tight family friends but the two of them always had a more stand-offish relationship (because they were both secretly crushing on the other I guess?...). It didn't feel like these two had ever even met before, let alone grown up together. I think it's hard to make your main characters have chemistry when neither of them has any personality

The whole chicken dance thing... I'll join all of the other reviews saying this really made no sense. At the beginning of the book August gets caught doing the chicken dance at a win celebration? Aside from the fact that this was super out of character for him and then never really addressed, I didn't really see what the big deal was? He's a young QB at a party, celebrating a win. A little moronic sure, but not the end of the world everyone treated it as. I truly don't even see why he didn't to "rehabilitate" his image after this. If Jason Kelce can jump out of a box shirtless and chug a beer, August can do the chicken dance.

The house situation also made little sense to me. Pen has inherited her grandparents home in LA that is currently worth 10 million because of the land it sits on. She can't afford the yearly property taxes on it and when her mother turns her down for a loan, August suggests she be fake-engaged to him and he'll help pay. (She turns this down and helps him out just because- he also offered to straight up give her the money as her friend, which she also turned down). Her mom tells her to just sell it if she can't afford the upkeep- it's a $10 million house! But of course Pen refuses, because apparently it's the only place that has ever felt like home (again, where the hell did she grow up?) But we never hear of her plans to raise the money? Like this is a beautiful house in LA with historic ties to old Hollywood- surely you can rent it out or do tours or let people film there. But she just asks her mom to borrow 125K "until she figures something out" but ZERO ideas on how to pay her back. She doesn't even have a job for goodness sake I wouldn't have lent her money either

Thank you to Netgalley and the publishing team for the ARC in exchange for an honest review.
Profile Image for Sam I AMNreader.
1,649 reviews334 followers
November 30, 2025
I will probably always read Kristen Callihan. Her books always make me feel light and bubbly, I like her characters - the whole ensemble.

Here, heavy effort was put into May and June, but they don't feel super distinct. Nor does March. I liked their interplay but there's not much in the way of flaws or developing the characters. They give a bit of context and a bit of a character rough -in for the principals but for so much page space I felt it could be better fleshed out.

Which brings me to the leads. Penelope, the reserved heroine, and August the seemingly-starchy but not. There's a comfort in callihans humor and the good nature of her leads, but they really felt a little too drawn for each other here. And at the end, that's exactly so.

I did read it non-stop and it was comforting. It didn't rise to the heights of my favorite Callihan new adult/sports romances, but that may be because they are great for me in the context they were in. This feels a little stuck in that place-while having a lot of content but being a bit underdeveloped. If you're a Callihan fan, pick it up. This novel is more satisfying and engaging than many sports romances.


Thank you to the publisher and netgalley for the ARC which did not affect my review.
Profile Image for Gracie.
24 reviews
December 21, 2025
1/5 ⭐️, don’t waste your time.

As always, thank you to NetGalley and the publisher for this ARC.

This is my first book by Kristen Callihan. I was initially drawn to this book because of Teddy Hamilton (obviously) and my newfound love of football (thank you Travis Kelce).

Unfortunately- I did not like this book. To say i hated this book would be a massive understatement. I will admit, there is one redeeming quality which is the realistic mother-daughter relationship (which is hard to come by).

From the moment the FMC/MMC started this fake engagement charade, the book went majorly downhill.
Here are my main gripes with this book:
- The text conversations between the siblings add nothing to the book. The jokes aren’t funny and are an absolute waste of time.
- The word “rizz” was used… BFFR. Genuinely appalling.
- FMC randomly started speaking in Italian. MMC has the typical “that’s so hot, you’re not like other girls- you’re cultured” reaction
- Why is there a frog named Edward in a magician’s hat?
- There is no shot that this is the NFL. Much less a family football dynasty.
- Naming the siblings after months??? January (goes by Jan of course)? March? August?
- FMC’s biggest insecurity was how big her boobs are in comparison to her tiny waist? Should we invite Bella Hadid?

There are obviously more- but I will stop here.

This book has potential- it could be reworked to be a much more compelling story. If this was in a collegiate setting, it would make more sense. MMC could be rehabbing his image ahead of the NFL draft. Or- rework this book to be YA. No functioning adult with critical thinking should rate this more than two stars.

Unfortunately, this book is incredibly juvenile and lacks depth. I would not recommend.
Profile Image for Cristina.
1,579 reviews276 followers
January 8, 2026
It started out interesting but at the 50% mark I was bored with all the fillers to make it look like a “fake” relationship. Meanwhile both MCs are pinning for each other 😑
Profile Image for Bethany.
833 reviews16 followers
January 6, 2026
This one gave me the warm fuzzies, y’all.

A football star golden boy now in the news for over-the-top antics that don’t mesh with the image he had previously cultivated proposes a fake engagement/marriage to his sisters’ best friend / close family friend.

She needs money to cover the taxes for the family home she inherited. He needs to reset his image on and off the field. A PR marriage could be the perfect solution for both of them.

Marriage of convenience is my catnip, so going in, I had a good feeling about this one.

And then…

And then I discovered that they both have harbored longtime crushes on each other.

(*Pauses to giggle and kick feet*)

With good banter, heartwarming moments, and plenty of heat, this one was a hit for me.

This is good for readers who like the idea of home being a person as well as a place filled with memories from the past and many more to come.

Speaking of homes in this book, I would gladly accept an invitation to August’s childhood home or Penelope’s grandparents’ house. One embraces the idea of having a place to belong; the other is steeped in Hollywood history.

This one is great in print or on audio. Just know going in that the audio is dual—as in each narrator covers all the voices in the chapters from his/her characters’ POV—as opposed to duet narration. Teddy Hamilton and Maxine Mitchell do a great job of capturing the emotion and humor in this one.

I received advance copies of the book and audiobook from HTP/MIRA, HTP Hive, and Harlequin Audio. All review opinions are my own.

4.5⭐️
Profile Image for anovelaccount (Kayla).
270 reviews42 followers
January 6, 2026
3.5 stars rounded up

This book is such a cute lil sports romance! I honestly don’t read a ton of that subgenre, but this was the first of two sports romances I’ve read this month 🤣

August and Pen are childhood friends who grow up thinking the other doesn’t really have much care for the other. Now, they enter a fake dating relationship to help with some of August’s image issues in the public eye.

I love so many of these tropes used in this book, and I felt like they were done well. I loved August’s big family dynamic and the found family angle with Pen. I loved that Pen rode a motorcycle—super cool! I loved that there was no third act breakup. And I loved the history of Pen’s grandparent’s house and her eventual friendship that grows with another girlfriend from the team.

Could there have been more football? Yes, but I’ve noticed that this is a trend overall in sports romance—heavy focus on the romance and the sports becomes a minor subplot, so this isn’t make it or break it for me.

A couple issues, though: her nickname for him is Pickles…it was very hard to take anything seriously when this nickname was used seriously 🫠 I also felt like anatomy descriptions during intimacy scenes were cringy too. My main issue, though, was the length. There seemed to be quite a lot of filler that didn’t add any depth to the story in an attempt to make a longer story.

Don’t get me wrong, I binged this in a day and was very entertained. I giggled and thought a lot of the dialogue was well written. I just think it could have been shorter without any loss to the overall story.

🎧This is a cute romcom that is EXCELLENT on audio, so I would definitely go that route if you pick it up! Maxine Mitchell and Teddy Hamilton are flawless in their portrayal of the MCs and really add quite a bit to the enjoyment of this book! I loved listening.
Profile Image for ✨Crystal✨.
76 reviews5 followers
January 5, 2026
✨ALC Provided by NetGalley for an honest review✨

Only on Game Day was a sweet sports romance. Pen was a shy girl that grew up around the Luck family. She’s always had a crush on August, but never thought she was good enough for him. August is now a NFL player that has an image problem and after running into Penelope again at a family get together, he decides a fake fiancé would do the trick to help his image. But of course the fake engagement starts to blur and their relationship becomes all too real.

These two were cute together! I liked the characters and their low tension romance, and I also liked the lighthearted story. It was a good palette cleanser.

I listened to the audiobook which was dual narrated. Each narrator did a good job with their characters. If you’re looking for a sweet lighthearted sports romance, you might want to check this out 😁
Profile Image for PJ.
21 reviews12 followers
December 23, 2025
Story: 2.75 ⭐️
Audiobook: 5 ⭐️
Narrators: Maxine Mitchell & Teddy Hamilton

Thank you HarperCollins for this ALC in exchange for an honest review.

The Performance
As always, Maxine and Teddy do not disappoint bringing characters to life. Maxine’s narration gave Penelope an innocent yet intelligent charm that spoke well beyond her 20+ years of life that I adored. As for Teddy, what can I say about his narration that hasn’t already been said? His voice is so distinct, so recognizable. I’ve heard him narrate across different genres and characters, yet his performance is always consistently making me melt.

The Story
There was very little sports in a book that was marketed as a sports romance. I expected to see more of the team dynamic and comradery. Instead, we get the Luck Family dynamic, which I enjoyed, but read more like a family drama involving a childhood friend. I felt like the storyline plateaued after August approached Penelope with his fake engagement proposition. There was not a lot of conflict to move to story forward, and the book read like snapshots of their lives instead of an organic story.
Profile Image for Jenica.
1,465 reviews46 followers
October 20, 2025
As a person who has been reading ARCs for a while now, I know that books don't dramatically change from ARC to final, most of the time. And typically, that's a good thing. But I really hope there's another round of edits for Only on Gameday because while there are some really great moments and signs of this being a Callihan novel, this also contains one of the most disjointed romances I've read in a while. The motivations are simply not there in this childhood friends to lovers romance to make this book make sense.

The book opens with August having an out of body type of experience where he is acting out in a way that is really not great at a celebration. He's, I think, ashamed of himself and his actions and so when we meet him again, he's at him childhood home. His reasons for acting out are... somewhat explored, but not in a way that was very satisfying in terms of character development. And so, August, on a cross-country flight, proposes to his childhood friend that she marry hm to help clean up his image. He's careful though to tell her that he will never fall in love with her because football is his wife.

And at the beginning of this book, I'm fully invested. I love a childhood friends to lovers and it's clear that Penelope has had feelings for August for a long time. The problem arises when the romance building blocks don't line up. It's like you're stacking kid sized legos at the beginning and then you keep trying to jam an adult size microscopic piece on. It just didn't follow for me. But again, I could see all of the pieces! It's so close to being a great book! And instead, I gave it a three and I think that might be too generous.

Thanks to Netgalley and the publisher for the e-ARC!
Profile Image for Puppybhai.
300 reviews10 followers
Want to read
December 9, 2025
SO WE GOT THE DATESSSS????!!!!
AM I SCREAMING JUST LIKE MY BOLD TEXT!!??


YESSS ABSOLUTELY!


NOW DON'T BREAK MY HEART! BE GOOD YOU BOOK!


WHEN ARE WE GETTING THIS??? I NEED DATE!!!
Profile Image for Meghna S.
225 reviews21 followers
January 7, 2026
Only on Game Day is a contemporary sports romance built on a very simple, very effective premise: a public engagement that is supposed to be temporary, strategic, and strictly transactional. Of course, it immediately becomes emotional, inconvenient, and increasingly hard to pretend. If you like your sports romance with high stakes, reputational pressure, and a slow burn that actually earns the payoff, this one delivers.

August Luck is positioned as the classic headline magnet: absurdly talented, moments away from becoming an NFL draft star, and perfectly capable of detonating his own career with one viral “what was he thinking” moment. What I appreciated is that his “bad boy” energy is not romanticized into cruelty. The story frames it as immaturity plus impulse control plus the public microscope, which feels closer to real life than the cartoon version of the trope.

Penelope Morrow, on the other hand, is not written as a doormat or a saint. She has her own problem, one that is unglamorous and painfully practical: money, inheritance logistics, and the looming weight of estate taxes. That grounded, adult problem gives the fake engagement a believable spine. It is not “we need a date to the gala.” It is “we need a solution that stops life from collapsing.” The result is one of the cuter, more convincing “fake dating” setups I have read, even as someone who usually side-eyes the trope.

The emotional engine here is the history. They grew up around each other, and the book leans into that simmering familiarity: the old impressions, the former irritation, the ways people change when they finally stop performing for their families. The dynamic is basically sunshine boy in hot pursuit meets formerly reserved heroine who has finally decided she is done hiding. The best slow burns are about escalating specificity, not just delayed physicality, and this book understands that. August does not just want Pen, he notices her, studies her, chooses her in small ways long before the big ones.

A quick note on the “Luck” family branding: the month themed sibling names took me out of the story more than once. It reads like a wink at the reader and a neon sign for “future series,” and while I absolutely see why it was done, it occasionally tipped into cringe for me. The same goes for August repeatedly calling Penelope “sweet.” Pet names can be charming, but repetition can turn endearing into grating, and this one hit that line for my taste.

Where the book is most polarizing will be the balance of spice versus plot. The heat level is not subtle, and the extended run of spice scenes goes on long enough that it occasionally felt like the story paused to luxuriate in steam at the expense of momentum. If you are here for explicit, plentiful payoff after the yearning, you will have a great time. If you prefer the plot to keep moving between scenes, you may feel the pacing stretch.

That said, the audiobook experience helped a lot. Teddy Hamilton and Maxine Mitchell bring a warmth and chemistry that amplifies the romance, softens some of the secondhand embarrassment moments, and makes the emotional beats land more romantically. If you are on the fence, I would genuinely recommend the audio format.

The book also does something very savvy for a series opener: it introduces the wider Luck sibling orbit in a way that feels like an invitation rather than an interruption. It is clearly laying track for future books, and even with my minor cringe about the naming gimmick, I walked away wanting stories for multiple siblings. That is the hallmark of a strong series foundation.

And the ending. I loved the ending. Not because it is flashy, but because it feels like the logical conclusion of everything the book is quietly building: accountability, choice, and a relationship that stops being a performance and becomes a home.

If you want: slow burn sports romance, fake engagement that turns emotionally real, protective hero energy, and a high spice payoff.
Proceed with awareness if you dislike: repetitive pet names, very on-the-nose series setup, or long stretches where spice eclipses plot.

Thank you to @htpbooks and @htp_hive for the ARC and ALC.
Profile Image for Leigh Kramer.
Author 1 book1,422 followers
November 18, 2025
I was so excited to see there was a new book in the Game On series! This felt more like a spinoff into a new series about August and his family than something connected to Game On. Regardless, I enjoyed it. That said, it's far from Callihan's best work.

When August proposes a fake engagement to burnish his public image in exchange for money Pen can use to pay the property taxes on the home she inherited from her grandparents, she's not expecting it, nor is anyone else. It's a good set up but not quite punchy enough to keep the middle from dragging. The plot and the character arcs were all over the place. August and Pen's mothers are best friends so they've basically grown up together. But since they also secretly liked each other, they avoided each other and made each other think they didn't like them. For years! No one in their respective families ever suspected there could be something more. All that did was made me wonder whether there really was something more.

My biggest issue was the disjointed characterization. August's chicken dance, which was the impetus for him getting in trouble with the team and needing to clean up his act, is not really explained or explored. In fact, it was such an aberration for his character that it doesn't make sense that it happened in the first place or that it would cause that much trouble. Pen is shy but it doesn't explain how or why she has no friends outside of the Luck family. And then at the same time, she's somehow able to spontaneously cook for a crowd and host a party. She's only 22! I don't care if her Italian grandmother taught her how to cook every summer. Most people that age wouldn't be able to do that and even less so if they isolate themselves the way Pen does. These may seem like small issues but they're examples of how August and Pen didn't add up, which therefore made their emotional arcs less resonant.

Despite this, it was a fine enough read until This was a BS choice and it almost made me dock another star.

If this is indeed a launch pad for a series about August's siblings, I'll be more than interested, with the hope that Callihan will be back in rare form. Fingers crossed for January's story first.

Note: When Pen is rationalizing why she wants to spontaneously have August's team over for dinner, she says, "I'm Italian." Her new friend commiserates, "I'm Hispanic." This is a woman in her 20s or possibly early 30s. If she said, "I'm Latina," I still would have thought it was an odd choice but it wouldn't have bothered me nearly as much. They're both pan-ethnic terms but Latinx is much more common these days. But my issue is really why would someone respond to a specific ethnicity by giving their pan-ethnic identity? It would be like Pen saying she was European instead of Italian. We don't know much about this new friend beyond her being a famous actress with an ethnic-sounding last name. This would have been an easy opportunity to flesh out her backstory. Is it a dealbreaker? No. But it did make me question why Callihan decided to include someone who is potentially a POC and then flub the representation so easily.


Characters: Penelope is a 22 year old white college senior, film history major, and virgin. August is a 23 year old white rookie starting quarterback in the NFL. This is set in LA and Boston.

Content notes: anxiety, physical assault, vandalism, sexism, fatphobia, athlete and actor diets, diet culture, FMC is estranged from her father, past parental abandonment, past parental divorce (FMC's father cheated with her nanny), past death of grandparents, past career-ending injury (MMC's brother was a passenger in a car hit by a drunk driver), secondary character's former coach/father figure is dying, past death of secondary character's parents, past infidelity (secondary character), on page sex, pool sex, alcohol, inebriation, hangover (secondary character), casual acephobia, gendered pejoratives, gender essentialist language, ableist language, hyperbolic language around addiction, reference to past COVID


Disclosure: I received a free advanced copy from MIRA.
Profile Image for Laurie • The Baking Bookworm.
1,815 reviews517 followers
January 12, 2026
Kristen Callihan is a new to me author and when the publisher offered me this book and I saw that it had the friends-to-lovers and fake dating tropes I was all in.

I don't know much about football (despite my oldest son trying to teach me), but you don't need to know anything about this popular sport because this is simply a sweet (and spicy) story about childhood frenemies who decide to have a fake engagement to get both out of hot water. What neither of them realizes is that they've both had massive crushes on each other since childhood.

This was a cute read, but I didn't love it as much as I had hoped. The miscommunication trope was in overdrive as both August and Penny are unable, even after decades of having crushes on each other, to tell each other how they really feel. The way they handled things felt immature (ignoring each other at family get togethers because they secretly liked each other, forgetting to tell their very close family members about their very public engagement to the silly, repetitive pet names). I would have loved more page time for the fake dating trope with its awkward moments with family and coworkers, but it was very anticlimactic and the tension petered out before it really got going.

The secondary characters are a fun bunch which are mainly August's family and August's BFF on and off the field. There's lots of sass and the banter is *chef's kiss*. It's a big group with strong personalities and I get the feeling this is a lead up to some of these characters starring in future books.

This is a light romance with funny banter, a sports theme and some spicy bits. It was a decent read with a strong secondary cast and okay main couple, that keeps things light and breezy but only touches briefly on emotional topics and not with as much depth as I had hoped.

Disclaimer: My sincere thanks to the publisher for the complimentary digital advanced copy which was given to me in exchange for my honest review.
Profile Image for Jessica Alcazar.
4,404 reviews624 followers
January 6, 2026
🎧AUDIOBOOK REVIEW🎧

I was a mere 15% into this story and I was already so ridiculously entertained that I jumped right into my kindle to see if I had more of her words downloaded! And wouldn’t you know, I did this exact thing in 2020 when I read my first story by her and now, I am truly in my audio #happyplace! Thank you #Netgalley & #HarlequinAudio for the opportunity to listen to this ALC!

While I was highly entertained, it wasn’t a complete #win for me. The narration by 🎤Teddy Hamilton and 🎤Maxine Mitchell made it really easy to overlook a lot and just enjoy “them” performing this story. The story is charming and I felt the slow-burn connection between the MCs very well, but it all felt a bit too superficial. I kept thinking that maybe it was the #NewAdult of it all that maybe I wasn’t vibing with but I’m not 100% sure that was it because they didn’t come across as “young” but I “knew” that they were, so maybe?? *shrug* That’s the thing with aspects of a story that don’t quite work for different people, sometimes they just can’t be pinpointed or could even stem from the reader’s mood on the particular day they decide to read the story. Who’s to know LOL, I just know that I was entertained but yet not 100% fulfilled with the story. I really love that I got to reacquaint myself with this author and that narration was ❤️superb❤️!!
Profile Image for Melanie (mells_view).
1,933 reviews395 followers
January 10, 2026
“Eventually you’ll see it, Penelope Morrow.”“See what?”
“See yourself the way I do.”


I loved the first four books in the Game On series by Kristen Callihan, so I jumped at the chance to read Only on Gameday which is listed as being part of the series. I think the childhood family friends to fake dating trope was, interesting. I enjoyed the fact that they each sort of had a crush on each other in the past and it came out as not liking one another. I will say that the character voice for each character didn’t really work for me. I never felt connected to the heroine and I never felt connected to the hero. Their love, ok I can believe it, but I was having a difficult time really caring. I can’t explain fully why this book didn’t work for me, but while I think it was good and that others will enjoy it if they enjoy a slow burn fake dating romance, it just wasn’t my favorite.

I think had it been marketed as a different series I wouldn’t have longed for the new adult/witty banter vibes I felt in the original four books. It was a good read. I wanted it to be great.

Side note: the nick name pickle absolutely took me out every single time I read it. 🥲

AVAILABLE NOW!
*ARC
Profile Image for Jackie.
1,345 reviews
December 2, 2025
I was interested in Only on Gameday as soon as I saw the friends-to-lovers setup. I enjoyed Pen and August as characters. They’re both genuinely likable and I appreciated their long-standing connection, but something about the fake dating-to-lovers chemistry just didn’t quite click for me. It felt a bit lackluster, like the emotional spark never really built into something deeper.

I kept hoping for more layered moments between them-more depth, more tension, more charged dialogue that makes you feel that shift from fake to real. Instead, a lot of their interactions stayed surface-level, and the connection that should’ve felt intense or inevitable came across more mellow and muted.

All that said, the premise is solid and the story reads easily, so it’s not a difficult one to get through. I just personally wanted a little more emotional weight and conversation that really hits. If you’re in the mood for a lighter, easy sports romance with a soft friends-to-lovers vibe, this might work — but don’t go in expecting big standout moments.

Although this wasn’t the book for me, I appreciate the ARC from NetGalley and Harlequin Trade Publishing in exchange for my honest review.
Profile Image for Amanda Grace.
804 reviews59 followers
December 23, 2025
Only on Gameday completely won me over. August Luck and Penelope Morrow are the kind of couple that sneaks up on you, settles into your heart, and refuses to leave. From the opening chapters, I was hooked by their shared history, easy chemistry, and the quiet yearning threaded through every interaction.

Kristen Callihan excels at layered characters, and that strength shines here. August’s recent missteps are clearly out of character, driven by the pressure of being a number-one pick rookie quarterback and the weight of living up to his older brother’s legacy. That internal struggle adds depth to his arc and makes his vulnerability feel grounded and believable.

Penelope felt immediately relatable. Her need for solitude and her deep attachment to her grandparents’ home give her character a strong emotional foundation, and I loved how those elements shaped both her personal growth and her relationship with August.

Their romance is a delicious slow burn. Growing up together while secretly crushing on each other—and assuming those feelings were unreturned—sets the stage for epic yearning. The fake engagement only heightens the tension, making every look and almost-confession count. When they finally give in, the payoff is immensely satisfying, with tender, intimate moments that are both soft and undeniably sexy.

The supporting cast adds so much charm. The Luck family is chaotic, hilarious, and full of heart, with the sibling group chat providing standout moments. I also loved the locker room banter and the sense of camaraderie among August’s teammates, which made the football world feel authentic without overshadowing the romance. The nostalgic movie quotes and a subtle nod longtime Callihan readers will recognize were fun additions.

What ultimately makes this book shine is how perfectly August and Pen complement each other. They see one another clearly, offer steadiness where it’s needed, and grow together in ways that feel organic and believable. If you love fake dating that turns achingly real, childhood connections, and slow-burn sports romance packed with heart and swoon, this one is a must-read.

Thank you to NetGalley and the publisher for this ARC.

Release Date: January 6, 2026
71 reviews2 followers
December 26, 2025
I really enjoyed this book!
It was super cute. Was it always very realistic? No. Did I care? No.
I loved August and Penelope's love for each other.

There was quite a bit of miscommunication between August and Penelope, which sometimes got to be a bit much. However, it was the main thing in the book that caused tension to be resolved. As a friends to lovers romance, I really enjoyed the moment they admitted to one another that they liked each other more than friends.

I listened to the audiobook and found it really entertaining! For the narration, Teddy Hamilton and Maxine Mitchell did a great job. They're narration kept me engaged, entertained, and not want to stop listening!

Overall, I thought this was a fun and enjoyable read! It was light, funny, and cute!

Thank you Harlequin Trade Publishing|MIRA, Harlequin Audio, and NetGalley for the ARC and ALC to review! This review reflects my own opinion.
Profile Image for Liz | Bookslizreads90 .
430 reviews113 followers
Review of advance copy received from Netgalley
December 31, 2025
Thank you so much for this ALC for my honest review. This was honestly such a breath of fresh air. I listened to it in one sitting because I couldn't put it down. I love a fake relationship/engagement, but throw in mutual yearning and childhood friends to lovers, take my money now! I loved that there was little unnecessary drama. I loved the slow-burn. I just loved it all so much. I 100% recommend this to all my friends!! Although this wasn't in duet narration, the narrators did a great job at bringing this story to life. You have to love Teddy 😍🤭!
Profile Image for Ashley Miller.
610 reviews18 followers
January 12, 2026
Sassy, sweet childhood friends-to-lovers with fake dating, sports romance, and a big, lovable family that clearly sets up a full series. I really enjoyed the dynamic between the MCs and the overall vibe.
It did feel a little drawn out at times, and I wish the author had gone deeper into how her safety was handled after the public attention and her trash dad—those threads felt a bit left unfinished. Nothing major, just things I was hoping to see explored more.
Overall, a great first book from this author for me, and I’m definitely continuing the series.
Profile Image for Sue Em.
1,810 reviews122 followers
Review of advance copy received from Netgalley
January 3, 2026
As their mothers were best friends, Penelope and August grew up together. While Penelope was close to his sisters and brother, there always was a polite reserve between them. Now he's the #1 NFL draft pick QB facing blowback from PR issues and she's trying to finish school. Callihan always writes an entertaining and spicy story, but I just didn't connect to these characters as much as those in her last series. Thanks to netgalley and the publisher for the opportunity to read this book in exchange for an honest review.
Profile Image for Ariel.
385 reviews12 followers
January 7, 2026
This is a fake dating, best friend’s brother, childhood friends to lovers, and second chance romance. It is an absolutely swoony good time! I rated this one 4.5 stars! When sports new starts saying the MMC is not serious enough to lead his team to the playoffs, he decides to do the only reasonable thing: get a fake fiancé. Who better than his sister’s best friend?

Thank you Net Galley, the Hive, and Harlequin Audio for the opportunity to listen to this ALC!
Profile Image for Laura • lauralovestoread.
1,699 reviews290 followers
December 28, 2025
Here’s a new sports romance to make you swoon. When childhood friends August Luck (love the names of the characters and his siblings who are names January, March, May and June), and Penelope Morrow team up with a fake marriage plan to help her out financially, and keep August out of the spotlight as a bad boy, their romance can only heat up.

I’m on a fake dating kick right now and loving it! I paired the print with audio and thought the were both great.

*many thanks to MIRA and Netgalley for the gifted copy for review



Profile Image for b.andherbooks.
2,357 reviews1,275 followers
dnf
December 4, 2025
i love kristen callihan. that said, this is not holding my attention and also i read a very similarly-troped book this year, plus trusted reviewers are giving it middling responses so we'll part ways here.

Profile Image for Ana | SheSaidYestoBooks.
1,999 reviews152 followers
January 11, 2026
2.5 stars ⭐️

I am a sucker for sports romance and I really wanted to love this one but I just couldn’t get into. I couldn’t relate to the characters. At a certain point, I just stopped reading. I have enjoyed some of Callihan’s books before so I will certainly read more of her work.
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