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Our Secret Summer

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I’ve spent years stuck behind a desk, always doing the practical, predictable thing. But when my  sister’s untimely death leaves me with her unfinished bucket list, I have no choice but to throw caution to the wind and hop on a flight to sunny Ibiza. Attempting to carpe my diem on the shores of the Spanish Mediterranean, I waste no time making new friends and finding work at a popular nightclub.
 
Living out my sister’s dream summer shouldn’t be hard with her bucket list as my
 
Go surfing? Done. 
Get a tattoo? If the list says so…
Fall in love?…Sorry, sis. No luck on that front.
 
That is, until I meet my surprisingly sexy boss Cristiano Moreno Winthrop. He’s completely off limits, but we can’t seem to stay away from each other. And between late-night talks, glittering parties on his yacht, and steamy stolen moments, I’m starting to think that I just might have found a way to finish that bucket list after all. But summer won’t last forever. Is what Cristiano and I have just a fling, or will it last beyond the season?
 
Escape to Ibiza in this sparkling summertime romance, perfect for fans of Christina Lauren and Abby Jimenez.

351 pages, Kindle Edition

First published May 5, 2026

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About the author

R.S. Grey

55 books12k followers
R.S. Grey is the USA Today bestselling author of over twenty-five romantic comedies. She loves books, chocolate, reality TV, and cold weather. She lives in Texas with her husband, two daughters, and dog. Visit her at rsgrey.com.

Instagram: @AuthorRSGrey

Pinterest: http://www.pinterest.com/RSGrey/

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5 stars
709 (36%)
4 stars
761 (39%)
3 stars
388 (19%)
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76 (3%)
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Displaying 1 - 30 of 233 reviews
Profile Image for ash.
55 reviews8 followers
May 4, 2026
This is going to be a long review, so buckle up lol.

I’ve been a huge fan of R.S. Grey for years, and she’s honestly what got me into reading in the first place, starting with Scoring Wilder back in 2014, so I was really excited going into this one.

Our Secret Summer has everything I love about her writing. The tension, the enemies to lovers dynamic, the setting, the characters… it all just worked so well for me.

I completely fell in love with Isabel and Cristiano. Isabel’s storyline was especially beautiful. Watching her travel to Ibiza, not just to escape her life but to complete her sister’s bucket list, added such an emotional layer to the story. It wasn’t just about romance. It was about grief, healing, and figuring out who she is outside of the life she’s always known. Seeing her slowly open herself up to new experiences, new places, and new people made her feel really real and easy to root for.

And then there’s Cristiano. I loved how guarded and off-limits he felt at first. That dynamic between them, especially with him being her boss, created so much tension right from the start. Their relationship had that perfect push and pull where you could feel the chemistry building in every interaction, even when they were trying to resist it.

And the romance… the slow burn was SO good. The tension between them was insane in the best way, and it just kept building and building. Every look, every conversation, every moment felt intentional. And when it finally paid off, it delivered. The chemistry, the buildup, the spice… all of it hit exactly how I wanted it to. It felt earned, not rushed, which made it even better.

I also loved how the setting played such a big role in the story. Ibiza felt like its own character. The nightlife, the scenery, the energy of the island all added to the vibe and made everything feel very immersive and very summer coded. It made me want to be there with them.

I found myself highlighting so much throughout the book, which is always a sign I’m fully invested. There were so many moments that just stuck with me, whether it was emotional, romantic, or just really well written.

Overall, this was the perfect summer read and exactly what I want from R.S. Grey. It had the fun, flirty energy she’s known for, but also had more emotional depth than I was expecting, which I loved.

If you love enemies to lovers, strong tension, emotional character growth, and a slow burn with a satisfying payoff, I would 100% recommend this one.
Profile Image for Corinne’s Chapter Chatter.
1,187 reviews53 followers
May 6, 2026
It isn’t often that I have a physical reaction to a book, but this one? There were definitely tears streaming down my face by the end… happy tears.

So grateful for the complimentary copy sent my way from NOVL because I genuinely might have missed this one otherwise. I ate this book up in a single day. I was completely swept away by the escapism and how perfectly it hit all the romance beats I love.

Millionaire/Billionaire Romance ✅
Vacation Romance ✅
Feisty FMC ✅
Dark, brooding MMC ✅
Plot-driven, non-cringey spice ✅
Found Family ✅

And that’s just scratching the surface.

What really stood out to me was the balance between the FMC and MMC. Neither of them needed the other in a dependency sense—there was no damsel in distress, no over-the-top “rich man fixes everything” dynamic. They both stood firmly on their own, which made their connection feel that much more genuine. It was about want, not need, and I will always eat that up.

If I had to nitpick, I would’ve loved a bit more depth when it came to Cristiano. I want to know who he is beyond the business, what really drives him. But at the same time, that slight mystery added to his allure and absolutely kept me turning the pages (which I happily did at lightning speed).

And let’s talk about the spice for a second… because yeah, there is spice, and it was completely in line with what I enjoy. It’s entirely plot-driven, never gratuitous, and hits that perfect balance of being exciting without tipping into cringe. Every scene felt intentional and connected to the emotional growth of the relationship, which made it land so much harder.

My only complaint? That I didn’t read this sooner.
Profile Image for NMmomof4.
1,835 reviews5,168 followers
May 17, 2026
3.5 Stars

Opinion Breakdown
The Good: The premise, the side characters, the H.

The Not-So-Good: The h was too immature for who she was supposed to be IMO.

The Bad: The ending. I felt like it was too abrupt and didn't leave me with nearly enough closure.

Overall: This was cute! I was going in writing this review thinking it was going to be 4 stars, but then once I started voicing my struggles with it, I went down to a 3.5 star review. The ending is the main reason (see closure section below). Then it's the h. I struggled with her being a 26 year old with a MBA that had to hide things from her parents. She also was rude to the H at first in a way that felt like it was supposed to be cute. I felt like she behaved immature and didn't quite get the "overly responsible" characterization of her. All that being said, I didn't hate it or anything and I still enjoyed it a good bit.

Brief Summary of the Storyline: This is Isabel and Christiano's story. Isabel decides to take a trip her sister was planning and scratch off the bucket list items she created before she died. Only she has to go incognito because her protective and famous family doesn't know what she's planning. She instantly meets some friends and also keeps on running into her new boss, Christiano, and sparks fly. There are some sweet moments, some secrets revealed, some sexy times, and some fun side characters...and they get a HFN ending.

Point Of View (POV): This alternated between Isabel and Christiano's POV.

Overall Pace of Story: Good until the end. I never skimmed and I thought it flowed well otherwise.

Instalove: No, but instant attraction.

H (Hero) rating: 4 stars. Christiano. I liked how he reluctantly fell for the h and was instantly in protector mode.

h (heroine) rating: 3.5 stars. Isabel. I liked her, but I also thought she was a little immature for her age/life experience at times.

Sadness level: Low, no tissues needed

Push/Pull: Not really

Heat level: Good. They have some good tension, chemistry, and scenes -- but not so much it takes away from the story.

Descriptive sex: Yes

OW (Other Woman)/OM (Other Man) drama: Only some mild jealousy

Sex scene with OW or OM: No

Cheating: No

Separation: Not in the typical sense

Possible Triggers: Yes

Closure: This ends way too abruptly for me. All of a sudden we have a time jump in the epilogue and barely any closure right after the conflict was "resolved"?! Yeah, that was disappointing for me and while others might be fine calling it a HEA, I consider it a HFN

Safety: This one should be Safe for most safety gang readers
Profile Image for Chloe Mae.
18 reviews3 followers
May 7, 2026
I don’t have enough stars for this one!! ⭐️ Do yourself a favour & pick this one up next time you need a beachy steamy - you’ll fall in love with the main characters - kind of read. I don’t often re-read but I just might with this one.
Profile Image for Payton Box.
1,578 reviews23 followers
May 4, 2026
Oh. My. God.

This is a book I was dreading for all the best reasons, I have been a fan of R.S. Grey now for over 10 years, I love her books, and I hate when her books end. I didn’t want to start this one cause then it’d be over, but I’ve been thinking about it daily and monthly since I got my copy. I think this is easily a top five R.S. Grey book for me now, I loved it with my entire body.

The banter between Cristiano and Isabel in the beginning when she gives him an attitude from the first time they met was the literal best. One thing about her background, is she isn’t going to let a man get her down, nor let a man do anything without giving it back, and I loved how much she pushed him throughout the book from the beginning to literal end. The setting of this book was absolutely beautiful, all the books I’ve read set in Ibiza describe it so vividly that I just become desperate to visit, I can so easily picture each scene and it makes the book that much more beautiful.

The spice in this book blew me away, it was some of R.S. Grey’s best, and I was heated and enjoying every moment. The chemistry, tension, push and pull between them just added so much to their desire and connection beyond the friendship also building, I lived for every scene they were in together.

Finally, the friendship in this book between Isabel, Simone, and Annika was so good. I loved the support, the joy, the laughter and just seeing them all get along with no jealously, I’m so glad that R.S. Grey didn’t make the club a toxic place to work, but instead a safe place to land after Isabel hated working for her father’s company.

Man, I’ll be sharing this book with all my friends, I cannot wait to get a physical copy for my shelves!
Profile Image for Morgan Tong.
62 reviews1 follower
May 13, 2026
A 6 ⭐️ read for sure! This was such a beautiful story of finding love after the heartbreak of loss and finding yourself through the process. Seriously could not put this down!
Profile Image for Jame_EReader.
1,524 reviews1 follower
May 9, 2026
This slow-burn, enemies to lovers, grumpy to sunshine is definitely a lively and engaging book to wake my senses up. I love the fake hatred teetering on shyness but seriously cute and funny. The banters, the stolen looks and Cristiano are just the icing on the cake. Not to mention Isabel de Vere is absolutely the queen of all in this book! Seriously though, this had me planning for a future trip to Ibiza someday. Overall, this one is definitely in my top 20 books to read this year.
Profile Image for Tara Brown.
57 reviews1 follower
January 26, 2026
Just like any R.S. Grey book I’ve read, you can’t help but fall head over heels in love with the main characters and their love story. The character development for the mains as well as the side characters is so well executed. I would love to continue reading stories about the characters in this Ibiza life. The slow burn in this book is soooo good. Has you begging for more time to read. The will they or won’t they energy is top notch.

Thank you author and NetGalley for the chance to read this ARC!
Profile Image for Alicia&#x1f90d;&#x1f4d6;.
340 reviews56 followers
May 5, 2026
This was such a cute fast pace summer romance and I loved the aspect of the story our FMC Isabel is in Ibiza because she’s trying to complete her dead’s sister Winnie bucket list and my heart broken for Isabel be when she was trying new things she was always thinking about her sister Winnie when she’s on this yacht I think it it she meets Cristiano it’s like everything changes I love how bold her personality can be sometimes and then other times she got shy 🤭 she had a little thing for Cristiano near enough straight away and oh my he’s a millionaire too and she had no idea plus her grandma called Cristiano behind her back and he agreed he’d keep and eye on Isabel so throughout the book the tension was building up and they started to tease and annoying each other at times I was laughing!! I love Isabel’s friends I think they are all funny and they help Isabel along the way whole being in Ibiza Cristiano I only believe he has good interest at heart soon as he realises who Isabel really is he takes his job very seriously and becomes super protective like a bodyguard and I’m here for it 🤭 at first he didn’t want much to to with Isabel but soon as he got to know her he was gone for I love how he shows her around and helped with her checklist from Winnie and he was such a good listener too 🥰 if you want a quick, cute summer romance this is it!

Quotes I loved:
"You do something to me, Isabel. You make it so fucking hard to resist. Mírame. Look at me."

“My heart hammers, and I feel so exposed lying beneath him. Exposed and wanting.”

Tropes:
☀️ Grumpy x sunshine
👙 Found family
☀️ Secret identities
👙 Millionaire boss
☀️ Workplace

Profile Image for Gel.
320 reviews36 followers
May 16, 2026
I really really really enjoyed this one! I wanted it to be 5 star so badly but a couple things kept me from rating it higher. Cristiano was such a mystery. We get a few chapters in his POV but I still wanted to know more about him. We know everything about Isabel, and her story is amazing—-for the romance aspect I would have wanted more from him. Another thing that bothered me was the OW drama—-I don’t care that it was part of the story. That didn’t bother me. I just hated how it was handled….or should I say, NOT handled. Daniella was vapid and irritating. She has a handful of scenes and always seemed to be hanging around. Was she an ex? Was she a wannabe? Who knows because there wasn’t any closure with her. She is hanging on him at the club and at events and says they go WAY back (whatever the hell that means) then she’s just….gone. We don’t get much from his POV so who knows. Like I said—-I loved Isabel’s story and the plot as a whole! Just bothered by some of the other stuff! Still a great read and I would totally recommend!
Profile Image for Judy Ballard.
109 reviews1 follower
May 19, 2026
Our Secret Summer was a heartfelt and emotional summer romance filled with second chances, healing, and self-discovery. Isabelle’s journey was deeply connected to the memory of her deceased sister, Winnie, whose bucket list pushed her to take risks and truly live again. Winnie’s presence added so much emotion to the story and gave the romance a deeper meaning beyond just falling in love.

The chemistry between Isabelle and Christiano was impossible to ignore. Christiano, the wealthy billionaire with his glamorous Ibiza lifestyle, brought excitement, tension, and plenty of swoony moments to the story, but he also had unexpected emotional depth. Their romance unfolded against the gorgeous Ibiza island backdrop, filled with luxury, summer nights, beautiful beaches, and the kind of atmosphere that makes you want to book a flight immediately.


Profile Image for Shannon.
9,007 reviews444 followers
May 8, 2026
A boss x employee, summer romance set in Ibiza that has the FMC trying to complete her dead sister's bucket list while falling for the one man she shouldn't. This was fun, had emotional depth and some great open door scenes but I also felt it was a touch too new adulty. I would have liked a more mature FMC but besides that it was still a fun summer read and perfect for fans of authors like Abby Jimenez.
Profile Image for Ash.
31 reviews1 follower
May 22, 2026
⭐️⭐️⭐️⭐️.75

read this in one day, I simply could not put it down. Isabel and Cristiano’s chemistry, banter, soft moments all of it had me sucked in right from the start.

On top of that beautiful and thought out side characters wrap the whole story together in a beautiful summer read. True friendship, moments that had me giggling and kicking my feet all while the story handles grief in those moments. R.S. Grey is an incredible author and I will for sure be picking up more of her books!
Profile Image for simply_readss.
61 reviews
Review of advance copy received from Netgalley
May 5, 2026
Summer is officially here, or at least in this book!

I had so much fun with this one, it was a light fluffy romance, but with an MMC who's tall, dark, and possessive 🤭🤭

To me, this was more a vibes book and perfect for those looking for their next summer read.

Thank you so much Requited and NetGalley for the ARC!
Profile Image for Sabelle C.
681 reviews8 followers
May 17, 2026
4.5 stars

Incredibly moving and powerful story of loss, learning to live after, finding friends, and finding love.
I really enjoyed this story. Surprisingly sad, but awesomely moving with great characters you can’t help but root for!
Loved Cristiano’s touch-her-and-☠️ attitude
Loved the paternal grandmother
LOVED the spice!!
Thoroughly enjoyed the journey
Profile Image for Liz Hooper.
17 reviews
May 17, 2026
This was such a beautiful, fast paced summer romance and easily a 5⭐ read for me! I loved following Isabel as she travels to Ibiza to complete her late sister Winnie’s bucket list, while navigating grief, healing, self discovery, and unexpected love along the way. The story perfectly balances heartbreak and hope, making it impossible to put down.
Profile Image for Danielle Wilson.
6 reviews
May 13, 2026
I couldn't put this one down. What an amazing story. Loved the setting on Ibiza, loved Isabels friends, her grandmother, of course Cristiano and her sisters bucket list that created this whole story. Such a fun read especially right now for me (beginning of summer) WWWD?
Profile Image for Hannah ✮ ⋆ ˚ ꩜ ⋆。°✩.
20 reviews
May 17, 2026
started this at like 2:30am and finished it by around 5:30 LMAO it was a cute lil summer beach read vibe and the characters and the life are all so fun i think for me personally missing a bit of angst tho
Profile Image for Ashley.
789 reviews28 followers
May 5, 2026
Our Secret Summer has me ready to pack my bags and hit the beach - and I say this as someone whose favorite season is sweater weather.

Before Isabel’s sister Winnie died she made a bucket list for one magical summer. Now it’s Isabel who finds herself on Ibiza with a duffel bag full of Winnie’s clothes and the determination to have the kind of summer that would make Winnie proud. When Isabel’s money is stolen from her hostel locker, she makes a plan to get a job at the hottest club on the island no matter what. What she doesn’t anticipate is Cristiano, the hottest man she’s ever laid eyes on and her new boss.

I really loved our FMC Isabel. Though she comes to Ibiza to fulfill her sister’s bucket list, this summer is really the one where she comes into her own. Isabel’s grief of losing her sister is in full display, but this book wasn’t as heavy as I was expecting it to be. The grief is there along with Winnie’s memory, but Isabel processes it in a way that allows her to take care of herself while still living her life to her fullest. Seeing her grow and realize what she wants (and doesn’t) out of her life was really my favorite part of this story. Cristiano was a sexy, exciting love interest, but I definitely struggled with their relationship a bit. It felt like something was missing - I think I would have enjoyed this more if there had been a bit of a backstory between the two of them and not just their shared connection (I don’t want to spoil anything). That being said, I think the ending was really special and I did end up getting a bit emotional.

Thank you so much to Requited and NetGalley for a review copy. This was such a fun way to kick off my summer reading and I look forward to reading from this author again in the future!
Profile Image for Alyssa Lerch.
6 reviews
May 15, 2026
Absolutely loved it! Such a quick summer read! Adorable 🥰
Profile Image for Kait.
228 reviews5 followers
May 18, 2026
4.5 ⭐️
83 reviews
May 20, 2026
The actual perfect summer read. Ibiza, hot rich guy, clubs, yachts.
Profile Image for Cass_saag.
410 reviews
May 21, 2026
Ugh I just did not feel the chemistry I’m sorry
Profile Image for Rebecca.
32 reviews
May 18, 2026
The PERFECT summer read. I was surprised by just how much I loved this book. Isabel’s story of grief, resilience, friendship, love, and romance was so sweet. Christiano is the perfect MMC and I love how their story unfolds.

☀️ insta-lust
🌊 Ibiza setting
☀️ grief & healing
🌊 millionaire MMC
☀️ summer romance

10/10 loved this book!

Thank you NetGalley for the ARC!
Displaying 1 - 30 of 233 reviews