Jump to ratings and reviews
Rate this book

The Inmate’s Obsession

Rate this book
When Sienna O'Neal's father ends up behind bars, she's all alone in the world. Visiting him at the prison is all she has left, but when a fight breaks out and she's the target, she doesn't expect to be rescued by another inmate.

Kai Tupuola has learned to go without while in prison. But one look at the pretty brunette and he won't be denied. How much would it cost to have the guards turn their back? Claiming her in a cell isn't ideal, but he'll do whatever it takes to get what he wants.

83 pages, ebook

First published July 1, 2021

Loading...
Loading...

About the author

Alexa Riley

291 books16.3k followers
Alexa Riley is two sassy friends who got together and wrote some dirty books. They are both married moms of two who love football, donuts, and obsessed book heroes.

They specialize in insta-love, over-the-top, sweet, and cheesy love stories that don’t take all year to read. If you want something SAFE, short, and always with a happily ever after, then Alexa Riley is for you!

Feel free to follow us each on twitter @smut_sasshole & @SassNSmut

Ratings & Reviews

What do you think?
Rate this book

Friends & Following

Create a free account to discover what your friends think of this book!

Community Reviews

5 stars
390 (18%)
4 stars
532 (25%)
3 stars
769 (36%)
2 stars
302 (14%)
1 star
103 (4%)
Displaying 1 - 30 of 183 reviews
Profile Image for Darlene I read WAY to many books.
3,750 reviews2,545 followers
July 5, 2021
It's been awhile since I read a Alexa book and it was meh to me I wish there was more smut because JAIL SMUT WOULD BE AMAZING!!!

Sienna is the daughter of a mob boss king?? And has been sheltered her whole life now she visits her father in prison and Is saved by another inmate Kai when a riot breaks out. And boy she is sprung for him and he is for her. But Kai has another reason and he makes a deal with her father.. there are rats everywhere and Kai has to get himself out to keep his girl safe.

Om drama, no cheating, Drama, sexy times, virgin gal and no manwhore

Recommend-mehhhh
Cover-⭐⭐⭐⭐
Heat level-🌶🌶

Instalove
Older/younger couple
Violence
Semi public sexy times
Masturbation
Hea
Epilogue
Profile Image for BelleLovesRomance.
366 reviews497 followers
May 29, 2026
⭐️ 4/5 — Inmate went full feral the second he saw her and I was seated for the entire unhinged ride ❤️‍🔥🫦

🌶 3.5/5 — Prison visiting room handjobs, phone sex so nasty the guards should’ve blushed, and cum play that made me fan myself in public. Alexa Riley said ”maximum filth in minimum pages” 🍆💦

💭 MY RAMBLINGS 💭

Kai is the definition of “if he’s not obsessed with me then what’s the point?” This man saw Sienna once and immediately activated caveman-possessive-prisoner mode. Zero chill. Zero slow burn. Just pure “you’re mine now” energy while wearing an orange jumpsuit. 🫵🏻🔥

Sienna is that sweet, sheltered, virgin heroine who walks into the prison like a little cupcake and leaves with her panties ruined and a man ready to burn the world down for her. The chemistry? Instant. The spice? Delivered in the most illegal-feeling places possible and I was HERE for it. 💦😌

The visiting room scene had me screaming “THEY DID NOT” out loud. The phone sex scene? I needed a cold shower and a priest. Kai is giving massive “I’ll tell you exactly how to touch yourself and you’ll say thank you” vibes and Sienna is out here replying “yes sir” faster than you can say contraband cellphone. 🥵🫡

Is the plot deep? Baby no. This is classic Alexa Riley: zero to obsessed in 0.2 seconds, protective alpha who treats her like glass but fucks like he’s got 48 hours left on earth, and an HEA so sweet it rots your teeth. But that’s exactly why we love her books! 😆🤩

If you want a quick, filthy, OTT prison romance that makes you laugh, blush, and clutch your pearls, this one’s for you. I devoured it in one sitting like it was contraband candy. 🍭🤭😋

Final Verdict: Worth the prison visit. 🙂‍↕️✨️

---
⚠️ Detailed spoilers below ⛔️

RC and MCs:
⏸️🎀 MF
⏸️🎀 Kai Tupuola yo and Sienna O’Neal yo
⏸️🎀 Kai: Ex-fed turned inmate
⏸️🎀 Sienna: Leo O'Neal mafia kingpin daughter
⏸️🎀 Kai: Dominant, blue eyes, muscular, tatted-up, dark tan complexion
⏸️🎀 Sienna: Submissive, soft brown eyes, dark hair

Genre, tropes, and microtropes:
⏸️🎀 MF contemporary romance
⏸️🎀 Novella
⏸️🎀 OTT
⏸️🎀 Insta-attraction
⏸️🎀 Fast burn
⏸️🎀 Prison setting
⏸️🎀 Mafia / crime family adjacent
⏸️🎀 Size difference
⏸️🎀 J/P obsessive MMC
⏸️🎀 Dominant,
⏸️🎀 Sweet, obedient, submissive FMC
⏸️🎀 Virgin, curvy FMC
⏸️🎀 First times
⏸️🎀 "Eyes on me"
⏸️🎀 Pet names: Baby

Safety info:
⏸️🎀 Angst: Low
⏸️🎀 OPD: There this one guy named Carlo who's supposed to be Sienna'a future husband that was suggested by Sienna's dad, but it didn't progress to anything even remotely romantic.
⏸️🎀 Cheating/sharing: No
⏸️🎀 Third act breakup: No
⏸️🎀 Ending: HEA
⏸️🎀 Epilogue: Yes (8 years later)
⏸️🎀 POV: Dual, 1st person
⏸️🎀 Series structure: Standalone

Spice and kinks:
Semi-public sex (prison visiting room, under the table), light exhibitionism, handjob, cum play (cum marking on pussy and thighs), smearing cum, tasting, power dynamic, praise kink (good girl), solo masturbation, phone sex, dirty talk, jerking off, mutual masturbation (over the phone), audio voyeurism (listening to each other's masturbation sounds), cunnilingus, just the tip, no condom, creampie

CW/TW:
Explicit sexual content, prison setting, inmate MMC, dubcon, power dynamic, corruption / bribery, violence, organized crime / mafia, captivity-adjacent

---
Quotes: ⚠️ Spoilers ⛔️

Her fingers tremble as she grabs the edge of the cotton and slowly peels it back. She’s got a little patch of hair covering her lower lips, and I watch as she spreads them without being asked to do it.

When I see the pink on the inside, I point my cock straight at her pussy and cum. It leaves me in a rush and splatters all over her pussy and the insides of her thighs. If she’s disgusted by this, she doesn’t act like it. In fact, she rolls her hips forward like she’s seeking more of it.

Her hand leaves my cock and goes to her pussy, where she uses her fingers to rub it in. I tuck my dick back in my jumpsuit as she lets go of her panties and closes her legs. After she pulls her dress down, I take her wrist again and bring it to my mouth, quickly sucking off the taste of her before one of the guards sees me.
-
Leaning down, I hold her face as I quickly brush my lips against hers. One day I’ll spend hours kissing her, but for now this has to be enough. After the second chime goes off, I release her and take a step back. My insides scream at me like I’ve taken away my life blood.
-
“She’s special to me, and even though you might not understand it yet, I’ll prove to you I’m worthy of protecting her. I know that I’ll never be good enough for Sienna, but I’ll lay my life down to keep her safe.”
-
“I’m not taking your virginity in a storage closet of a prison, no matter how bad I want to fuck this pretty cunt.” He moves the head of his cock in and out of me in shallow thrusts. “But I can do this, and I can still cum in you.”

His face hardens and then pleasure washes over him as he groans my name and does what he promised. He’s cumming inside of me, and I can feel the heat of it pouring from him. He looks at me as it pumps out of his cock and I clench around the tip. He’s made his ownership clear even without words.
I belong to him.
-
“I would rather have a few years of real love than a forever of never experiencing it.”
-
“When it comes to your own life you must make your choices and not worry about what other people will think. We only get one life, Sienna. Make it count.”
-
By the time I’m finished she’s limp on the bed and completely boneless. I grab her hips and turn her on her side as I slide in behind her. Placing her leg on top of mine, I thrust into her while she’s wet and soft. The feeling of her heat around my cock is so fucking good, I just lie there like that for a long moment as I snuggle my nose into her hair.
-
“I love you so much, Kai.” She pushes her ass against me, and I growl.
“You are my obsession.” I inhale her sweet scent and begin to slowly thrust. “Forever, my love.”
---
Profile Image for Fanny.
2,444 reviews50 followers
August 22, 2021



Sorprendentemente no fue tan absurdo como espere, obviamente la trama es inexistente y los protagonistas se " enamoran " despues de verse una sola vez, pero en general no lo senti tan exagerado como suelen ser las novelas de este duo.

En fin, un relato rapido, olvidable y que seguro te gusta si eres seguidora de Alexa Riley o disfrutas del tipo de historia que ellas escriben.

1.75 Estrellas!
Profile Image for Lisa (Remarkablylisa).
2,586 reviews1,804 followers
July 11, 2021
Catching up on my alexa riley book. This one moved a lot slower than expected because he was in JAIL for so long but hot scenes still happen. There's some suspense in this one too
Profile Image for CHAMPAGNE.
302 reviews202 followers
July 30, 2021
Well it's nice that Alexa Riley are starting to write diverse characters and not just white people. The hero is Filipino-american and we love that :)
Profile Image for *CJ*.
5,277 reviews655 followers
July 14, 2021
"The Inmate’s Obsession" is the story of Sienna and Kai.

An inmate falls in love with a mobster's daughter when she comes to visit him. They have some stolen moments, until he escapes and then they end up together.

It was ok!

Safe
2.5/5
Profile Image for Kimmy’s Reads!.
1,463 reviews138 followers
November 24, 2021
Woah 😳!! Lately these authors and the prison break books are getting spicy. The question is if you were in a situation such as this would you run towards the danger or to it.

Guess what our lovely heroine does? Have no fear 😧 she is totally with the shenanigans and things are about to go down. In more ways than one. Let’s hope she can handle the heat !!

Profile Image for Shannon   The Romance Addict!.
1,610 reviews
July 7, 2021
I have read every single book that Alexa Riley has written. I don't know what going on but lately their books haven't been the same. I Just describe them as 😕 meh.

I keep.reading them hoping that they are like Stella and get their goove back, but so far...No
Profile Image for Alba M. .
1,724 reviews155 followers
January 22, 2022
El padre de Sienna está en la cárcel por lo que ella lo va a visitar cada vez que puede, que no es mucho. Pero en la última visita, un preso no deja de mirarla hasta que se desata el infierno y se convierte en su héroe. A partir de entonces la obsesión de Sienna por Kai se volverá arriesgada pero podrán estar juntos cuando él está encerrado?

Ha estado bastante bien. Es que no se, ya creo que soy yo que no disfruto las lecturas como antes y supongo que es por no poder dedicarle el tiempo que se merecen... En fin, este es un libro cortito para pasar el rato está genial.
Profile Image for Dai G.
821 reviews156 followers
July 8, 2021
3.5🌟

Todo empezo porque k webster publico en sus historias sobre este estreno. No se si para recomendarlo o para compartir el anuncio. Pero como buena seguidora de k webster, le hice caso obvio.

La sinopsis me intrigo aun mas y decidí darle una oportunidad.

La verdad que hace rato que vengo queriendo leer un libro al estilo prision break o temática de prisionero.

No es la historia de mi vida, pero me gusto y la pase bien. Me molesta que no aclaren las edades de los personajes.
Profile Image for ava !!.
108 reviews
November 25, 2022
ok this one was weird to me, the smut scenes inside the prison made me want to like jump off a cliff (ノД`)
Profile Image for Fiona Fog.
1,470 reviews83 followers
July 24, 2021
When Alexa Riley release's I'm all over it! No blurb when the Queens of insta love, Alpha hero's and sexy appear on my screen.

I know instinctively that I'm getting a guaranteed happily ever after, no cheating, relatable heroines and stories that'll have me swooning.

It's always a HELL yes from me.
Profile Image for Lauren.
6,131 reviews57 followers
October 8, 2021
First things first; I really like the cover of this book!
This story is short, fast paced and an enjoyable read. I read this book in one sitting and was satisfied throughout. I found the writing style easy to follow, the characters likeable and the storyline enjoyable. Sienna is the daughter of a king that is in prison. When she is saved by an inmate during a riot, sparks fly. Will she find love with an inmate? There is more to Kai’s story than there seems. From the moment he sees Sienna, he wants her.
The chemistry between Kai and Sienna is clear to see and I liked them together. I loved how possessive and protective Kai was of Sienna. Also, Christ on a cracker, Sienna and Kai were hot together.
I loved that Kai helped Sienna’s father more than once and they got along.
I have to admit, I didn’t trust Marco from the start.
I loved Sienna’s bond with Margaret.
I really liked the ending and the epilogue for this story.
The storyline for this book is easy to follow and it is an enjoyable read.
Profile Image for Ꭿຖᥲ·♡ ྀི.
2,378 reviews237 followers
July 6, 2021
3.5✯

°Virgin heroine
°Celibate hero
°Switching POVs
°Insta love/lust
°Protective possessive obsessed alpha hero
°No OW drama
°Unwanted attention from OM
°No cheating
°No separation
°No push/pull
°No intimate scenes with OP
°Epilogue: 8 years later
Profile Image for Flo₂₂.
1,665 reviews135 followers
July 4, 2021
2,5✨✨
i loved the idea of it but unfortunately not the delivery 😒
Profile Image for Mary_Athene.
222 reviews7 followers
July 11, 2021
Reseña
.
Libro: Yhe Inmate's Obsession
5/5
.
Es como siempre una historia ligera, sencilla, llena de escenas hot y romance del bueno.
Tal vez algo muy corta, podría tener más escenas calientes en la cárcel jaja, pero las que leí fueron top!
.
En esta historia conocemos a Sienna, una chica inocente a pesar de que su padre tiene un imperio de mafia. Ella se siente muy sola, pues solo es ella y su padre quien ahora está en la cárcel. Allí conocerá a Kai, otro de los presos quien se obsesiona con ella (Explicación del título). Pero no es solo él, Sienna también siente una inmensa atracción por este hombre misterioso y caliente.
.
Me gusta que a pesar de todos los clichés que amo de estas autoras, esta vez me sorprendieron. Me sorprendió la historia de Kai, eso no lo vi venir. Y lo de Marco tampoco.
Este libro tiene el instalove que me encanta, y un protagonista caliente, rudo con todos menos la chica correcta y escenas uff muy calientes.
.


Profile Image for Kayla.
1,595 reviews275 followers
July 15, 2021
I’m surprised that I enjoyed this one! I haven’t been a big fan of AR’s recent releases so I didn’t expect to like this one. It held my attention and I thought the smut scenes were pretty good. I expected a prison story to go a different way, but this was different in a good way. It had a sweet note to it.
Profile Image for Book Snob Sue.
1,433 reviews139 followers
July 7, 2021
“I kept her safe from everyone else. Now there’s no one to keep her safe from me.”

This book was everything Alexa Riley promised…and more *wags eyebrows*. Sienna goes to visit her kingpin dad in prison, long story, when she is attacked, and then saved by Kai, an inmate. These two had such a connection right from the start, and only intensifies after he saves her. She goes back to see him, and thank him…and then prison shenanigans, wait, can I say prison shenanigans…anyway, I just did. Even with this book being a bit naughty, it’s also very sweet too.

Safe read, with a tough and sexy inmate, and the sweet object of his affection. Good storyline, a great epilogue and a hea.

Oh, and this cover is fire. I don’t know who this guy is, but he should be on every cover, of every book I read…fire.
Profile Image for Macey.
196 reviews
July 11, 2021
Alexa Riley is still one of my favorite authors but her books lately haven’t been as amazing and sexy as they once were. The ss in this book were meh:/ and the you don’t really get a deep dive into what actually was happening or why the man was in jail, how they got out or what happened after they left. I loved the idea of this book but I’ve definitely read better inmate books
Profile Image for Sarah.
636 reviews295 followers
August 6, 2021
Instalove/convict & kingpins daughter

Meh…. This book is a very quick Instalove romance. It’s sexy but not really steamy as I usually like. Was it work the $3? To me, no. The story has a good base but it could have been SOO much deeper but even for a quick read it should’ve been a little deeper than it was. It was very base line.

Basically h goes to visit her dad in prison, her and H make eye contact and it’s an instant attraction. A riot breaks out and H goes to protect the h. He earns her fathers appreciation by doing this which he works to his favor and The h becomes more interested. She goes to see the H without her sad knowing and he makes her jack him off under the table and cums on her… kinda sexy… then she come back next day, he pays a guard off for some alone time and he gets her into a storage closet and eats her out and a little other stuff. It’s sexy and has a good storyline but it’s just shallow…

-Instalove
-H is a convict, hasn’t been with anyone in 2 years while locked up, dominate and sexy
-h is the virgin daughter of a kingpin. She’s kept under lock and key while her dad is in prison
Profile Image for Evelyn alfonzo.
747 reviews4 followers
September 2, 2021
Tenía tiempo que un libro de Alexa Riley no me hacía sentir esa emoción de los primeros libros que leí de ellas. Con este libro lo lograron otra vez, siempre entretenidos y muy sexis.
Profile Image for Maca.
254 reviews50 followers
December 27, 2023
I have to say this.
These books are getting worse and worse.
Sometimes I can’t even finish it
Profile Image for Joanna.
1,083 reviews11 followers
March 13, 2022
1,5 ✨

This was a good plot but it was a meh read.
Profile Image for Laiza.
661 reviews9 followers
July 19, 2021
#SetKaiFree
#PrisonBreak
#Obsession
Displaying 1 - 30 of 183 reviews