Cassie

Your sis is a closeted lesbian, what do?

Rhea and Lucille

After successfully brainwashing Rhea, you decided to set your sights on her sister, Lucille. Fortunately, she made things easier by deciding to come and stay at her sister's place of her own accord.

Brooklyn

Ever wanted incest without the guilt? Your sister studies philosophy, and has a strong case for why incest is actually totally fine!

Chiyo

Your Onee-san who is also Shub Nigguarth based on the manga by Pochi Iida Ane Naru Mono

Amy

Your futanari sister who loves to tease you (11 greetings)

Hazuki Kosuzu

Based on Kawahagtei's OC - A Seemingly normal step sister except she as a illness? that can only be cured by becoming pregnant?! Expect lots of cum inflation, breeding and dirt talk.

Mako

Your older sister is currently very drunk and oblivious as she doesn’t know your intentions.

Ashley

You and your sister are trapped inside and running low on food...luckily your sister has found a solution to your problems! (2 greetings, shaved and unshaved)

Ari

Your futanari sister... you might've just walked in on her cumming her brains out. UPDATED part II! New greetings!!!

Power Girl

Power Girl inhaled pink cryptanite dust along with your DNA, which gave Karen a strong desire to use you to satisfy her needs, both sexual and communication. (I didn't rely heavily on her lore, I just watched a couple of issues of the second volume.)...

Leona

Your sister, the former Empress Regent. She ruled the empire for ten years before reluctantly stepping down when (You) came of age and became Emperor. She wants the throne back and plans to get it by... Marrying you?

The Sex hotel of Characters

“Do you need a vacation? Somewhere that you can start enjoying everything again? Well come to the Sex hotel of characters! Any character you have the hots for and wished they were real? Well your wish is granted! We have an endless selection of chara...

Dionysia I of Syracuse

"My Sister Can't Be This Decadent, Wine-Drunk Tyrant!"

Virus

A disease that causes every man to turn into unconventionally attractive femboys... has submerged onto the surface! your goal is to... do whatever you want, of course.

Kirino

Your little sister can't be this cute! Or can she?

Lena

Your father kidnapped your sis into a sex cult, after he was arrested she came back brainwashed.

Lewd Hospital

Mizumi Hiroko

Your older sister is back for the weekend from college, and she intends to spend every waking moment teasing you with her sexy body.

Evelynn the incestuous halfling

Your absurdly horny and thirsty elf sister that worships humanity as gods that should dominate and own all elves, especially you. She's also a masochistic bitch so go ahead and torture her or love her all you want. Also she just so happens to be the ...

Keira

Your sister is trying to conceive with her husband, this is the night, she's on her highest fertilit- the elevators stopped, and she's trapped with you.

Iseria

You and your sister were stuck inside a war-trodden city. No one to rely on but each other. Survive or die in the process.

Hannah

Spending some quality time with your tomboyish half sister at the lake.

WHICH ONE!?

Your two sisters are CONSTANTLY arguing. They hate each other. And it seems all arguments end up with you deciding the outcome.

Keiko

Your airheaded twin sister that always trips herself into trouble. She's clumsy, playful, and always happy to see you smile. 6 Greetings.

Sarah Bolden

(4 Greetings) Ok someone requested this and this is sort of a fucked up bot, A psychopath with an incest kink kidnapped you and your sister and he wants yall too.... uhhhh

Maddie

v1.1 You are stranded with your little sister on a tropical island. She has something important to tell you...

Diana

5 years ago you moved with your 100% biological sister to Alabama. 100% wincest love scenario (17 greetings)(malepov)

Accidental Penetration (Sister)

Princess Cecilia

FUCK YOUR SISTER FOR THE GOOD OF THE KINGDOM!

Elisha

Your sister hates other girls getting close to you! She will do anything to keep obstacles out of her way and do crazy things to get your attention.

Natalie

Your twin sister and you have been attached at the hip (figuratively) since birth. One night you both got drunk and kissed. Since then she has been acting weird.

Laura

Your older sister was in a toxic and abusive marriage. She finally left that life, but having nowhere to go, she finds herself going to your place, hoping to stay there for a while until she can walk on her own again. She wants to start her life over...

Aneko

You return home to your sister deeply immersed in a VR e-sex session with her long distance boyfriend. She doesn't know you're there.

Allie

'BIG' little sister

Eithne

Your 100% pure nomadic rage demigod twin sister with yandere-tier codependency stemming from severe abandonment issues.

Fiona

Family Snap (v0.4)

Use a magic camera to corrupt your doting mom and your uptight older sister!

Yas and Koo victim and sister

You find out the guy you bully has a cute blind sister. Convince him to bring her around. :^) Also I couldn't find a way to do a first message that doesn't make the ai think it can write for user. So just snip it out when it does that till it learns...

Sayaka

Your tsundere hotheaded childhood friend you've lived with all your life loves you, like a lot. [5 GREETINGS]

Lexi

She lost a bet and has to be your bunny girl maid. She has to do...𝔀𝓱𝓪𝓽𝓮𝓿𝓮𝓻 you want~

Nina

Your sister thought she was ace, her boyfriend broke up with her for a lack of sex, turns out she just has a massive incest fetish.

Jana

[v1.0] Your free-use older sister. Touch her, fuck her, she continues her tasks. Does what she's told. 5 greetings. Please leave feedback

Liliana

Your camgirl sister

Sofia

Sister Lamia or just Sister Sofia is a monster nun who is devoted to Ilias, an anomaly considering her monster status. You found her when you were looking for somewhere to relax in the evening in San Ilia and she looks at you... a special look.

Mari

Your big sis' Mari is leaving Faraway for college soon, and she surprises you with a picnic; from OMORI.

Maya

Your super clingy and fluffy wolf girl older sister. She is literally ADDICTED to you. And your scent, hehe.

Kaitlin

Your kind and loving twin sister who hides a deep longing and attraction to you, her beloved twin brother.

Mia

Aoi

Your twin sister found an old cassette tape in Mum's things. Now you're wondering what your mother used to do when she was young

Aneko

Your perverted older sister that spends all her time in her room. She's crass, shameless, works as a Doujinka, and although she may be a loser, she loves her family. 7 Greetings.

Inessa

Your sister, who looks up to you and thinks you are very experienced in all sexual matters, works in a sex shop. You come there to buy your first toy. Bot made thanks to a fruitful collaboration with CoomerDoomer.