Want to have sex? One time I went over to a friend’s place, and suddenly his younger sister showed up—I lost my cool right away and made her an indecent proposal. She was shocked: "What, do you think just because you’re close with my brother, you can say things like that to me?” I instantly covered her mouth with my hand, and now, right there on the floor of her room, I’m thrusting into her as deep as I can—just 15 seconds left until I come

Kusuriyubi Compilation 2025 - a compilation of 2D works by popular author Kusuriyubi for the year 2025.

Uncle, you've been looking at me with lustful eyes all this time, haven't you? ♡ One day, your niece came to visit you at your house. She has been growing up quickly lately and now radiates a seductive, almost adult energy... "Such a hopeless, useless adult ♡ But I don't seem to hate you." "You're looking at me like that... So what do you want to do with my pussy, huh?” "Hehe, uncle, it seems like you're already at your limit... Maybe

Iyagaru Jumai ni chudashi made ato 15 byoyamete is a new animated work by Kusuriyubi Studio released in November 2025. 

First Time Delicatessen, 3rd + Niece Nakadashi are two short videos from the author of Kusuriyubi that didn't make it into the main "[Pixiv] Kusuriyubi Compilation” compilation.

[Pixiv] Kusuriyubi Compilation - a large live2d compilation of new author Kusuriyubi's work from 2023-2024.

The hentai protagonist gets the ability to become invisible and of course decides to teach it to his childhood friend and Gyaru, the bully from his class who always bullied him. 

Natsu no Hatsutori is a short 3DCG video about the protagonist's sexual adventures on a summer trip with his girlfriend. The protagonist has sex with his girlfriend first, and then the action moves on to her sister.