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Room Nineteen: The Finish is Worth the Wait

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One dinner changed my whole life.

That might be dramatic to say, but it’s true.

I was just a naïve sixteen year old military brat when my dad brought some of his team over for dinner two years ago.

I knew from that night onward that Spencer, Devon, and Reid were meant to be mine.

I don’t care that my dad is their commanding officer.

I don’t care that they're all so much older than me.

I really don’t care that some people will say that it’s wrong of me to want to be with all three at once.

It’s right to me.

Now I just need to convince the three of them of that.

Luckily for me, they know just the club for such a sinful night.

Fantasies are meant to come true and the men of Club Sin will see to your every kinky desire. This November, 22 of your favorite steamy romance authors take you inside Club Sin, a forbidden place where you’ll find love and pleasure with multiple hot men in these Reverse Harem novellas. Can you handle the heat?

22 rooms, 22 fantasies…Which door will you step through?

87 pages, Kindle Edition

Published November 19, 2021

47 people are currently reading
164 people want to read

About the author

A.J. Alexander

268 books1,419 followers
USA Today Bestselling Author AJ Alexander has been writing romance since 2018. She loves writing small town romances with found families and all the nosey nellies that help her characters find their happily ever afters! She lives in Arizona, otherwise known as the surface of the sun, with her husband, two daughters, two cats, and a lovable golden retriever.

When she isn't writing you can find AJ reading, binging the latest true crime documentary on Netflix, or binging the latest Korean Drama or Anime that's released. AJ is a cynical hopeless romantic that believes in love at first sight, that bigger is always better, and everything should be put off for a nap.

Come find her in the wild! There's nothing she loves more than connecting with my readers.


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5 stars
91 (39%)
4 stars
77 (33%)
3 stars
42 (18%)
2 stars
13 (5%)
1 star
9 (3%)
Displaying 1 - 30 of 33 reviews
Profile Image for QuinnReads.
3,780 reviews218 followers
Read
November 20, 2021
Edge & Deny

For years, Kelsey has been dreaming of and crushing hard on Devon, Reid, and Spencer. When opportunity knocks, giving her a chance to make her wildest fantasy come true, what does she do? Your guess might be close. 😉

I like that this is low on drama, high on edging and denying, and full of love and acceptance - with one exception but I'll not dwell on that. I appreciate that Devon and Spencer don't hide their relationship from Kelsey when everything else is being laid on the table. 💜👬💜🔥 I would love to see this in a longer format with even more details but I still enjoyed it!

I voluntarily reviewed an Advance Reader Copy of this book.
Profile Image for Debra  (Dragon Nanny) Phiri.
1,644 reviews21 followers
November 14, 2021
Hot hot hot! Fun story with lots of sizzle and a little romance to go along with it!

Club Sin is a place I will have to go back and check out!

Spencer, Reid and Devon are marines worth the wait! Kelsey is sweet and truly a likable character that has had some issues that the marines only can fix!

Love a story that has all the parts to make it just right!
Profile Image for Amanda Rodriguez.
218 reviews
November 19, 2021
Room nineteen is freaking fantastic. It’s steamy, sexy, and hot as hell. Even though it’s a quick read the build up is such a damn rush. In the end…it was definitely worth the wait! Hands down one of my most favorite storyline by the outstanding and talented AJ Alexander!!!!
Profile Image for Amy [Book Addict Reviews].
2,681 reviews181 followers
November 14, 2021
Kelsey is home, but her father has bailed on her once again. Spencer, Devon and Reid are finally ready to tell Kelsey how they feel and want to give her a birthday to remember. Club Sin is their playground and Kelsey is their new obsession.

I loved the connection between Spencer, Devon and Reid. The three of them have formed a strong connection and I loved everything with the three of them. Kelsey is the missing link for them. Adding her into the mix works. The chemistry is off the charts with all of them. I couldn’t get enough of it.

Spice, insane chemistry and connections, and a story that is completely worth the wait! Room Nineteen is a great, quick read from start to finish.

If you’re looking for a steamy, age gap, RH read check this one out!
Profile Image for Syd Springer.
4,068 reviews6 followers
November 19, 2021
Short and sweet review here!:
This is MMFM book meaning swords cross!

I loved this book! If you have not read it, read it now! Kelsey and her three Marines, Spencer, Devon and Reid were amazingly hot together. I loved the connection, chemistry, and undeniable pull that these four have with each other. It is finally time for these Marines to get who the want, and nothing to going to stop time. I really hope we get more books like this one! I would HIGHLY recommend this book and Ms. A.J. as a wonderful author.

I received a free e-book copy of this book and am voluntarily leaving an honest review.
Profile Image for Tawni Steiger.
152 reviews
November 19, 2021
I really liked the story line of this book, I just wish that it was longer and went more in depth. Kelsey is a military brat. But her dad has always made his career his priority. But when he begs her to come home for her birthday, she hopes that maybe things will change. Devon, Spencer and Reid are seasoned Marines who are always there to pick Kelsey up at her lowest. What they all don’t realize though is that all four of them want something more. Will one dinner change their lives? I do recommend this book.
Profile Image for Robin Reviewer.
1,026 reviews12 followers
January 31, 2022
Confusing - read on KU

This book is hot but it could have been so much better. I got confused at the beginning. Spencer, Devon, and Reid are guys who play together but only Spencer and Reid claim to be in a relationship. If you ask me, I would say if this group of three men gets together routinely to have sex, they are all in a relationship. It's just that only two of them are romantic together. But the rounds of communication and fooling around at the beginning are a bit confusing because we don't yet understand the power dynamic.

I got bored with all of the time Kelsey spends with her best friend, Willow. That didn't need to be included. It kind of ruined a part of it, IMO.

When they all finally get to the club together, Devon makes them waste7 too much time teasing one another. So, the meat of the story is maybe 5 pages at best. They absolutely didn't need to be at a sex club to have the scene they had. That's been my biggest gripe with this series as a whole. If you are basing the name of a series on a sex club, the scenes should use some aspect of the club they couldn't find at a hotel or a home without its own fun room.

While there is a true ménàge à trois, Kelsey isn't the center of it. There is also zero refractory time for the guys. I guess that makes it more fun but completely unrealistic.

The blurb also doesn't make it clear the men are over twice her age when they meet. They have been Marines for 20 years present day and they met her when she was 16, 5 years ago. She says they are in their 30s but they obviously have to be at least 38. 17 years is one giant age gap. I was assuming from the blurb it was closer to 10.

I just don't get writing kink if less than 15% of your book is going to incorporate that.
647 reviews11 followers
October 9, 2024
I didn't enjoy this one.

It was a pretty much a mess from start to finish.

Story issues
1) The relationship between the three male leads was poorly explained.
2) The male leads spying and paying for info from people who should have been loyal to the female lead while she was away at college was creepy and disrespectful and them failing to warn her these people were not to be trusted was just plain irresponsible.
3) The female lead came off as way too emotionally experienced and insightful for someone who was only twenty-one, had never lived on her own, had no real life experience, had an emotionally distant father, no mother, only one friend ever and zero romantic experience.
4) The female lead came off as way too sexual knowledgeable and accepting for someone who had zero sexual experience (at the least, she should have jerked away when someone started shoving their thumb up her arse without any prep or lube instead of leaning into it).
5) The sex scene jumped all over the place, making it confusing and disjointed, rather than hot.
6) The exploration of orgasm denial was poorly done and failed to hit the psychological and emotional heart of it
7) Devon was suppose to simply be the conductor with her at the center but he made himself the center and his grip on the room continually slipped, making him a poor and irresponsible dom (they had actually remodeled the room for him to conduct from behind a two-way mirror with a speaker but it was never used.)
8) “You want that cherry, don’t you, Reid?”“Do you want Reid to pop your cherry?”“Her cherry is mine.”“I feel the cherry” Really guys? You're in your thirties and that is how you refer to a young woman entrusting you with her first sexual experience.
9) I’m missing the piece bringing us all together, both in and outside the bedroom. No honey, they were already together in and out of the bedroom and have been fifteen years; you're just a pretty, moldable add-on. Oh, and I think you mean, 'I'm the missing piece', not 'I'm missing the piece'.

And that last is just one example of grandiose, romantic statements being made that are not supported by the story. 'I love you' was probably the most egregious, given the male leads demonstrated little care for the female lead's experience, instead concentrating on their own and each others.

Do not recommend.
Profile Image for Suznacky.
43 reviews
January 16, 2026
I had somewhat mixed feelings about this one. It started off strong, but as the story progressed, it began to feel like two separate relationships held together by a dom. Spencer didn’t seem quite as invested in Kelsey as the story initially implied. To me, it felt more like Spencer and Devon were in love with each other and in lust with Kelsey. Reid, on the other hand, appeared genuinely in love with her, though his place in the relationship seemed more connected to his dynamic with the guys and his praise kink.
Rather than Kelsey being the missing piece that completed the relationship, Devon came across as the one who truly held everyone together. I tend to prefer romances where the feelings feel more evenly balanced, so this aspect didn’t fully work for me. Additionally, considering Kelsey is a virgin, the intensity surrounding her first time felt a bit overwhelming.
That said, the group dynamic returned toward the end, and the story wrapped up in a more satisfying way. Overall, I did enjoy the book and liked the author’s writing and I will be checking out other books written by A.J. Alexander.

3.5 Stars ⭐
Profile Image for Sarah Sargent.
Author 2 books12 followers
November 19, 2021
This is the title I have been excited for the most from AJ Alexander! For the first time, we have an MMFM title. Which I know I am super stoked about. Yes, this means that swards cross in this title and I need more. Kelsey is used to being let down by her father. But it's the men in her life that are the ones that she wants the most. Spencer, Devon, and Reid have been there when Kelsey needed them most. But they all have a secret. Everyone wants the same thing. While Spencer and Devon love and are in a relationship together they want everything. This component is new for AJ and was as hot as you would get from her. Mix in a full reverse harem into this story and you will need a tall glass of cold water. We need more titles like this or with the MM component from AJ.
Profile Image for Marnie.
1,291 reviews30 followers
November 21, 2021
A short hot and super-steamy read that will singe your eyeballs.

Hell’s teeth!!! Author AJ Alexander has written what is the hottest book of hers that I have read! This M/MFM relationship between military brat Kelsey and the three Marines who have been in her life for years is yours to read in those stolen moments of reading that you might try to squeeze into your busy life 🔥🔥🔥🥵

Kelsey might have been inexperienced, but she wasn’t naive. She’d spent time imagining the dynamics in her head.

It’s a great storyline, although in this case I’d love to have seen more relationship development time – something that I appreciate maybe isn’t available for novellas. Still, it’s hot and recommended for those who love plenty of steam in their books *🖤*
2,494 reviews
August 3, 2022
Kelsey has loved three Marines who work under her father for years. But they won't do a thing because of their careers and her father. She flew home for her 21st birthday as her father requested. But of course he didn't come home because of work. And this was normal for him. He is a very important person in the Marines and wants to rise as far as he can go. To the detriment of his beautiful daughter. But things are about to change. The three men who have had the hots for her for five years look after her at the request of her father. And boy do they do that at Club Sin. In spades. She will never be the same. The men also share a huge secret. Two of them are in a committed relationship. Will this change her feelings?
Profile Image for Michelle.
10.8k reviews28 followers
November 24, 2021
Ever since Kelse was sixteen she has wanted Devon, Reid, and Spencer and now that she's turning twenty-one she's ready for her fantasy to become a reality. Little does she know the guys already have something planned for her at Club Sin. Room Nineteen is HOT! This is my first book in the Club Sin series and I can't wait to read the rest of the series and about all the wild fantasies coming true. Hot Marines and a steamy happily ever after make this a five star read. I voluntarily reviewed a copy of this book.
Profile Image for Jody Ross.
30 reviews5 followers
August 2, 2025
This is a short, spicy story in the Club Sin series. It follows Kelsey, a 21-year-old who falls for three Marines—Devon, Reid, and Spencer—whom she knew as a teenager through her dad. Their hot, four-way romance happens at Club Sin, with themes of older men, group love, and watching others. The attraction is strong and the steamy parts are exciting, but the story moves too fast and focuses more on physical stuff than deep feelings. It ends happily for now, but readers who want a stronger love story might feel let down. Great for those who like quick, bold, and sexy reads.
188 reviews4 followers
November 18, 2021
So Hot!

Kelsey's father is only concerned about his military career and is never there for her and she is always left for someone else to babysit her. She meet Devon, Reid and Spencer when she was 16 and has loved Her Marines ever since. They have kept an eye on her and now that she is 21 they are going to make her theirs. Can they risk losing her by taking her to Club Sin and letting her know all their secrets?
This is a really HOT, age gap, reverse harem, quick read.
4,331 reviews53 followers
November 19, 2021
Kelsey's dad is in the military and never home. He leaves Devon, Spencer and Reid (marines) to "look" for Kelsey. They have all formed a bond that later takes on a new shape. IT is a MMFM so if that is not your thing then you may not like it. It is very steamy and Devon is the dominant. I cannot tell too much without it being a spoiler.

I received this Advanced Reader Copy from the Author and my honest review is voluntary.
Profile Image for Vilma .
923 reviews1 follower
November 20, 2021
If you like your romance with a side of kink, quick and dirty, and full of three (not one, but three) sexy marines and a younger woman, this is the story for you.

Kelsey and her dad's peers is that quick, flirty, dirty, kink - all unraveled in Club Sin. This is a quick, dirty, age-gap, reverse harem romance.
Profile Image for Jamie West.
1,469 reviews5 followers
November 20, 2021
Ain’t Misbehavin’

One of my top favorite Club Sin stories!! Loved Room Nineteen so much!! The connection with these four amazing people is so intrinsic and intense and full of love and passion! Kelsey is the only one who can complete Devon, Spencer, and Reid in the sexiest, steamiest, and sweetest HEA an MMMF can be!!
Profile Image for Beth Althouse.
149 reviews3 followers
November 30, 2021
A quick, sizzling, kinky read. Kelsey has been waiting for her 3 marines for 5 years unbeknownst to her...so have they...and then some! FREAKING FINALLY they can get their groove on and claim what is theirs. Her father might have another view, but to hell with him! Club Sin and Room Nineteen are smoking hot with MMFM and an HEA to die for. You will not be disappointed reading this one!
Profile Image for Teri Ruscak.
2,131 reviews19 followers
December 2, 2021
AJ Alexander
Room Nineteen: The finish is worth the wait: Club Sin
ARC REVIEW
Kelsey
Ever since Kelsey was sixteen, she has fantasized about Spencer, Devon and Reid. Now that her twenty first birthday is near, she is ready to make her fantasies a reality. Little does she know, the guys have been planning a birthday surprise at Club Sin.
406 reviews2 followers
Read
February 23, 2022
Loved Kelsey!

I loved the chemistry between Kelsey, Devon, Spencer, and Reid.
Kelsey fell in love the three Marines when she met them at 16. They were taken with her when her Father and Commanding Officer had them babysit Kelsey. Devon, Spencer, and Reid had to wait until her 21st birthday before claiming her.
Thank you for a great story. Can't wait to read more from you.
640 reviews
April 7, 2022
Devon, Spencer, Reid, and Kelsey

I honestly love a good age-gap romance!!!! I honestly don’t know how much older the guys are then Kelsey but it really didn’t matter to her!!!! I love that in the end she stood up for herself with her father!!!! Way to go Kelsey!!!! I can’t wait to read the next book in the series!!!!
161 reviews
August 13, 2022
Intense. MM + MF = MMMF

Whew. This one was intense. There's instalove, age gap, polyamory, voyeurism, edging, no cheating, no cliffhanger, plenty of sexual tension, and bangs all around. The romance was minimal but emotional declarations aplenty. I wanted more from that ending as it felt more HFN than HEA, but still an overall fun read.
Profile Image for Becky Jean.
1,003 reviews13 followers
November 19, 2021
I loved A J Alexander's Room Nineteen. It was a great addition to the Club Sin series of books. Kelsey, Devon, Spencer, and Reid’s story was enjoyable with plenty of naughty super hot sex. The author gave them a HEA as well. Kudos.
Profile Image for Lisa D.
1,084 reviews4 followers
November 20, 2021
Great book with a weak ending

This was a lot of fun. Seriously steamy with a great set of characters and relationships but the ending conflict was way too rushed. A few more pages would have helped tie everything together.
Profile Image for Kirsten Pardini.
626 reviews8 followers
November 20, 2021
Spencer, Reid, Devon, and Kelsey!

Omg this was the hottest one in the sin club series so far! Girl, you got me in the feels(and sexy places lol)! Growly alphas x3 and BDSM on top, my kinda sexy sundae! Yum 😜!!
Profile Image for Eliza Olsen.
297 reviews10 followers
January 30, 2022
OMG 😳

WoW just WoW! I was captivated from the first chapter. A. J. is such an awesome author. Each scene was like it was painted in my mind . The chemistry between each was so hot 🔥🔥🔥🔥!! Now I need to know more lol
Profile Image for Lizzi.
2,109 reviews16 followers
December 13, 2021
Room nineteen is a standout feature in this book. What happens there, stays there. Except when Kelsey arrives. Spencer, Reid and Devon make it everything Kelsey wants and more. A great read!!
2 reviews
March 9, 2022
Loved it

Loved it can't wait to finish the rest of the series
Love is love. No more for me to say
Displaying 1 - 30 of 33 reviews

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