Dubious Secrets

Immoral Starts #5

by B. Sobjakken

I crawled into my sister's bed and her boyfriend unknowingly knocked me up.
One night's mistake has left us with a lifetime of consequences.
It wasn't a secret we were able to keep for long...

Genres: Novella, Forced Proximity, Surprise Pregnancy, Romance, Forbidden Romance, Erotica, Contemporary

102 pages, Kindle Edition

Published May 31, 2025

Reviews

[Mysti · Rating 5 out of 5]

UPDATED with additional read dates.
Hell yes!!! Please be warned – this is a cheating trope. That’s going to count a lot of you out.

Stassie (19) has moved in with her sister Mary and her boyfriend, Ryker (23), after the parents kicked her out. On Stassie's first night there, she accidentally ends up getting plowed by her sister’s boyfriend. Seriously guys, it was an honest mistake! Bada bing, bada boom, there’s a bun in the oven!!! There’s some filthy sex and a HEA for at least two of them.

SEX: Yes, and thank you. B. Sobjakken typically writes some pretty good smut. There were a few golden showers in this one, which is NOT my kink, but I just went with the flow (haha, get it?! God, I’m hilarious). Ryker discovers he has a lot of kinks, actually. You can add pregnancy fetish and breeding kink to his growing repertoire. Horny bastard. Plus, our precious Ryker is a nurturer. The way he worshipped Stassie was so sexy. Anyway – the sex is so good.

CHEATING: If you know me, you’ll know that usually I never tolerate cheating with my MCs, so why did I like this one? Well, I’m going into it already knowing the story – and to me, Stassie and Ryker are my MCs. Not Mary. That's the biggest reason. Does it make sense? Probably not. Plus, I appreciate that the author didn't try to make it out like Mary was some horrible person who deserved to be cheated on. Mary & Ryker just weren't meant to be and they both knew it. Seems like Mary is going to get her own HEA with someone else. Not that any of this makes things better. I'm just letting you know the facts.

If you’re cool with the cheating trope and all the kinks – go for it.

[Soft Nectarine ~ · Rating 4 out of 5]

he MISTAKES HER for her sister in the dead of night 🫢🫣 short novella with FILTHY EXPLORATIONS and I do mean down right naaaasty!

I was hesitant on the cheating trope (typically a huge no go for me!) but honestly…I could get behind it 👀 the sister wasn’t really that present in the story so I could really focus on the important stuff…THE SMUT!

Stassie & Ryker tried everything & for such a short novella I was impressed. This author never disappoints with filthy deeds between non traumatized characters (looking at you dark romance).

💦 accidental pregnancy

💦 WATERSPORTS *i glitched out on this one*

💦 DP & toys

💦 breeding kink

[girlwithhearteyes · Rating 4 out of 5]

4.5 don’t judge me stars

Ummmmmmm 😳🫣😳🥵🥵🥵.

Talk about the squirmiest taboo set up. There was accidental cheating (she crawled into her sister’s bed, and her sister’s boyfriend unknowingly knocked her up). There was breeding kink. The were other kinks I didn’t care for but, listen, I’ve already re-read this.

[Sierra's Book Wanderings · Rating 4 out of 5]

Just a quick, hot read that I felt like picking up... it pulled me in rather quickly, and I found myself wishing it was a bit longer! The love story was sweet, minus the cheating, of course. Luckily, the hero remains loyal to the heroine despite cheating on his gf with her sister! I don't usually go for cheating books, but I like the accidental pregnancy trope and was in the mood for a quick, steamy read, and this one delivered! I will definitely be reading more of B. Sobjakken's novellas!

[Jamie · Rating 4 out of 5]

I wish this was longer. And Ryker was a bit too passive for me, it felt a little like if he could have both of them he would. Which if that was the book, then I wouldn’t mind, but it wasn’t. Like why did Mary even have to ask him what his choice would be at the end, “if she made him choose” ? At that point he should’ve said they were done and there wasn’t a choice.
Sigh…. not everything can be perfect tho and this did fuel my need for h and H’s cheating together🤭

[Melanie (mells_view) · Rating 4 out of 5]

“God, every time with you…it just gets better.”

I feel like that quote pull is apt since I think every B Sobjakken book is just better and better in entertainment value. If you’re looking for quick, taboo, and a morality tweak, then Dubious Secrets is perfect. Definitely heed the TW/CW in the front because they are not held back in this one. Some of the kinky bits weren’t for me, but alas I enjoyed the story overall and it’s the perfect quickie between reads.

[A · Rating 1 out of 5]

This wasn't for me. I was already on the fence about reading this because I'm not a huge fan of the cheating trope, and that's exactly what this is. I'm sorry, but there is no way that what the two MCs did was a mistake. It wasn't like one of them was so high off of cough medicine or something. The MFC was completely aware the entire time, and she could have spoken out and fought back or bit him if she really cared and thought about her sister. He may have been half asleep, but let's be honest, the two girls don't look or feel anything like each other.

Annnnyways, that being said, I knew what I was getting into before starting this book. I knew it was a cheating trope.... what I didn't expect was the golden shower kink. I don't judge anyone who has that kink, but it's just not for me. There's one somewhat descriptive scene and then a couple more less descriptive scenes involving pee, and it just wasn't something I particularly wanted to read.

Overall, this one wasn't one I enjoyed. Sorry

[Irene · Rating 4 out of 5]

why did i vibe with this

[Jessie ツ · Rating 2 out of 5]

Yes, it’s cheating trope. Since the MCs aren’t being cheated on I thought to give it a go. (NO that doesn’t make sense but it’s fictional so idc).

Maybe I can just NEVER do this trope. Only times I’ve been ok w/ it are when the person who’s in relationship is like trapped, abused, it’s in name only & the person they are with is aware they don’t want to be with them. (e.g., forced marriage to abusive husband where wife tries to leave & makes known she wants to but it’s being forced to stay).

ANYWAY- the initial cheating was an “accident” kinda. But when Ryker (H) finds out what he did he should’ve told gf & broken up w/ her immediately since he wanted Stassie (h).

BUT NO! They actively kept cheating

Here’s my thing: WHY didn’t Ryker break up w/ Mary immediately when he:

1. found out he cheated
2. realized he wanted Stassie

🥸🥸🥸🥸🥸🥸

But, overall, it’s pretty short & chill.

-sisters bf
-accidental pregnancy
-forbidden (cheating)
-unimaginably tame reaction to cheating (Mary)

SO CURIOUS ….how they’re gonna tell baby about her origin story (This is how I got your mother: I was with auntie then accidentally fucked mommy, she got prego w/ u, we kept fucking, then I broke up with auntie! 😊✌️😝🤰😍🦅)

[Mel (whilemelwasreading) · Rating 4 out of 5]

"Fuck me."

"That's what got us in this situation."

I went into this for a palate cleanser- something quick and spicy to read during a series binge- and really enjoyed the vibes. It's got that 'we shouldn't' messy taboo vibes tension... after a night where he mistakes her for her sister and they make a baby!!!! The spice was spicing!! Not all of it was my cup of tea (waterworks) but this was a fun one. One of those novellas I would have liked to see full length.

3.5 Stars ⭐

[Dani · Rating 5 out of 5]

No thoughts, just vibes.

I used to think I didn’t like novellas but I realized I just needed to find the right authors. And Brooke always delivers.

[Toni · Rating 4 out of 5]

Erm...

I don't normally like the cheating trope cos it gives me the ick but I hate to admit I enjoyed this book.

KU Read
102 Pages
Immoral Starts #5
Forbidden
Cheating
Sisters Boyfriend
Mistaken Identity & Dub-Con
Accidental Pregnancy
Kinks

The basis of this story is that they "accidentally" have sex when he mistakes her for her sister one night and then a baby is conceived from it... Ok that part I get but the continued affair after had me both intrigued and a little bit 'icked but not enough to DNF the book. Like all the books in the series, it is meant to make you squirm with the taboo or immoral acts and it certainly does!

[Megan ~The Never Ending Book Basket · Rating 5 out of 5]

Actual Rating: 4.5 Stars

B. Sobjakken is my new favorite author when it comes to taboo and spicy romance. She just has a way of infusing all of the fire and forbidden romance goodness into what she writes. This novella was no different. I was absolutely consumed by it from start to finish. It broke all the rules, it was spicy as hell, it had so many kinks in it that made me blush and I couldn’t put it down.

This novella and this entire series probably isn’t for everyone, but it is well worth a read. This author definitely has a way of breaking all the rules in the best way, and she gives you taboo romance like no other. I truly cannot get enough, and I am already chomping at the bit for whatever she releases next!

[Megs · Rating 5 out of 5]

B. Sobjakken has done it again. If there’s a crown for the queen of taboo, she’s wearing it and absolutely no one’s coming for her throne.

Dubious Secrets is short, sharp, and filthy in all the best ways. This novella might be a quick read, but it packs a punch that lingers. Forbidden? Yep. Messy? Obviously. Addictive? Always.

Brooke never disappoints she hits you with TOP TIER SPICE, morally grey chaos, and characters you shouldn’t root for but absolutely do.

If you’re not reading her, you’re seriously missing out.

[Tommy Williams · Rating 4 out of 5]

Looking for plot? You won’t find a lot of it here but it’s a lot of fun 🤣. Seriously, a very enjoyable novella with quite a few triggers (and kinks) so be sure to check before reading. Finished it in a few hours and this is the second novella I’ve read from this author. Definitely a must add if you’re looking something something new, something fun and something naughty 😏

[Jan (Kavanagh's wifey) · Rating 2 out of 5]

This book was extremely freaky. However, it had the potential to be a good book... Maybe. Like, this story could've been acceptable. I would've given it 3 stars, but then! Then author had to make him hard by watching her pee. No, that's not all. Girly peed all over him and the couch. The couch. The. Couch. THE COUCH?!?! Seriously?? Whyyy??😭😭

[LollyDolly · Rating 2 out of 5]

2.5⭐️ Who knew that simply looking for a diffuser in your sister’s bedroom would end up with you getting pregnant by her boyfriend by “accident” 🤔,along with a lifetime of golden showers 🤨. There needs to be no justice for Mary (the sister), as the author points out in the dedication — frankly, she had a lucky escape from these cheating twats. The end. Dubious indeed.

[Mandy Reads Indie · Rating 5 out of 5]

Quickie Review: I wasn’t ready for this book, the things it made me feel and how much it made me question my morals all throughout the story. I was literally trying to come up with ways it would all work out in the end for everyone involved. And I won’t tell you some of the things that crossed my mind. Diabolical. But let me tell you what did work out for two people: the romance. And it was scorching hot the whole book. And I definitely was not complaining. 5 Stars.

[Leigh · Rating 3 out of 5]

Dubious Secrets was a naughty enjoyable read. While not my normal type of book I enjoyed every minute of it.

[Kimberly · Rating 5 out of 5]

4.5 starsss

Is cheating typically a no go trope? Absolutely
What is a no go trope if its including in a piece by B Sobjakken? Absolutely....NOTHING 🤣

Dubious Secrets is the latest release in her Immoral Starts series of novellas comprised of complete standalones. Under 100 pages of "Ooo I shouldn't love this but I totally do" sister's boyfriend juiciness are what lies behind the cover.

Ryder and Stassie are that couple you want to hate because you know how they started but then you see them share an inside joke giggle about someone offering up double stuffed Oreos as a dessert option (iykyk) , and you want to kick yourself because they're adorable. They're like Angelina Jolie and Brad Pitt before they turned hot mess express 🙈 Mary, Stassi's sister and Ryker's OG girlfriend, would be the Jennifer Aniston and I'm totally all for her having her own story. Emotional affair with her married doctor boss and her own cheating storyline perhaps 👀 just an idea 🤣

Anywayyyyyy as with anything written by Brooke be prepared for spice > plot but you will never hear a single complaint from me about it. Sign me up for the next slice of delicious chaos 🤤

[Emily Johnston (Booked.Up.With.Emily) · Rating 4 out of 5]

Dubious Secrets is the next installment in B. Sobjakken’s Immoral Starts novella series and I ride or die for this series!

🤰🏻Sister’s boyfriend
🤰🏻Cheating trope
🤰🏻Accidental pregnancy
🤰🏻Watersports (heavy on this!)

When Stassie goes into her sisters room for something one night, she doesn’t expect her sisters boyfriend to be in bed. And while Ryker’s half asleep, he really gives his girlfriend a ride to pound town. Except it isn’t his girlfriend. It’s his girlfriend’s sister.

And that night leads to an accidental pregnancy that neither expected, but both want to keep.

These two are forbidden and messy AF, but this was a fun read! The watersports aspect but heavy, so just a warning if you aren’t into that! IMO it was so well done that even if it’s not your thing, it might be your thing by the end lol

[Sally Jask-eh · Rating 4 out of 5]

Ryker and Stassie have a non traditional beginning but they still end up on path to healthy loving relationship. Was it SMutty? yesss it was. Was it explicit? Yes But it was also tender, hilarious to tears, intimate, natural feminine energy affirming. Ryder was a caretaker who was a cross between guardian angel, teddy bear, don juan big dong and a fun friend. Definitely a workMan of fiction at least until his disgusting habits appear after 5 yrs and 4 kids later🫢🫣❓Stassie is kinda immature, has a good heart and is doing her best. she has a passive personality. i would have liked more involvement from side characters. But overall great read. Taboo hook up parts make you want to scream out loud. no way⁉️ but I love that awkward tension, the horror suspense without any blood.

[Jess • bestiebookshelf_ · Rating 3 out of 5]

Brooke writes it, I’ll read it. This is her at her best.. these smutty AF short stories. I eat them up, evrry time!

This one was fast paced but worked well considering it was only 100 pages. This does have cheating.. he gets his GF’s sister preggo with a case of half asleep s3x when the sister was grabbing something from their room. Outlandish, yes. Hot, also yes. This was hella spicy, and I mean the shower of the ahhh golden variety was new, and not my jam but hey… Ryker liked it, and boy was he obsessed!

Enjoyyyyy 🤪

[Dalene · Rating 3 out of 5]

"A part of me realized something was off that night. I kept going because it was the best thing I’d ever felt, but I’ll never tell her that. If it helps alleviate her guilt by thinking I didn’t know, then I’ll take that secret to the grave."

Well damn...

You want to talk about taboo, this is it. The kink was something I haven't seen. I flew through it but man it's something else. It's good but man it's something else.

[Beyza · Rating 3 out of 5]

kız kardeşinin sevgilisi konulu
Adam sevgilisi ile yatmak istiyor gece yatağında sevgilisinin kız kardeşi var bilmeden onunla sevişiyor.
Sabaha anlıyor
Sonra kız hamile kalıyor
Bunlar yine sevisiyor.
En sonda kız kardeş öğreniyor
Epilog kızları var ve yine hamile.
smutlar çok yoğun yine
Adam eski sevgilisini biraz düşündü gibi sevmiyorum ben
ikinizi de seviyorum diyor. Ama çocuğumu seçerdim diyor
Eski sevgilisi ile arasındaki ilişki bitmiş gibi aliskanlikti galiba 1 senedir birlikte olmamislar nasıl oluyorsa

[Sabrina · Rating 5 out of 5]

Absolutely 👏🏻👏🏻👏🏻👏🏻 if you go into this knowing there is cheating and you’re okay with that then you’ll have a good time. Ryker and Stassie won my heart over. Tell me why I had tears at a few parts in this book. That’s when you know these characters are written well. This book also had a kink in it that I’ve never read before and I love when that happens. If you want a forbidden spicy novella READ THIS!!!!

[_kenzie_ · Rating 4 out of 5]

•cheating
•accidental pregnancy
•golden shower…
•double pen.
•forced proximity
•breeding kink
•sisters boyfriend

i hate cheating but i think since this isn’t a full length book…i didn’t feel as bad because her sister was literally never around. idk lmaooo i really loved Stassie & Ryker. their chemistry was undeniable, so sexy!😮‍💨🔥

“Fuck, you’re so fucking hot like this. Stuffed with two cocks and wanting more. You’re a dirty girl, aren’t you, Stassie?”

[Lynden · Rating 4 out of 5]

Stacey and Rylke are straight-up fire. This book doesn’t hold back—filthy, fast-paced, and full of deliciously taboo heat. The breeding kink? Top tier. Not for the faint of heart (or vanilla readers), but if you like it raw and unapologetic, you’ll devour this. I read it in one sitting and have zero regrets. Not a fan of 'watersports', though. The rest was spectacular. Loved the ending! ❤️ 😍

[Katelin S · Rating 5 out of 5]

This was so motherforking hot. Not only did Brooke give us some super spicy tropes, she gave MULTIPLE scenes of some favourites. Doing the lords work, honestly. Cheating trope isn’t one I seek out, especially when the one cheated on doesn’t deserve it, but my god I was all here for it. 10/10

[riley ☠︎︎ · Rating 4 out of 5]

4 stars✨

“Look at us, professional liars.”
“Secret keepers.”

I’ve never been a fan of the cheating trope but I’ve been making some exceptions lately. I knew what I was getting into and I’m reading this series for the fun of taboo.

This was pretty good and kinda funny at times lmao