Kiss x Sis

Keita is studying hard for a high school entrance test, but his two beautiful elder twin stepsisters are a constant distraction. Though they mean well, Ako and Riko are also extremely sexually assertive and interested in Keita. At first, he fends them off, but little by little, with each kiss, Keita becomes close to both twins until a forbidden love triangle develops. Will taboo-breaking love bloom between two of them... or will Keita at least get into high school?! (Source: Discotek Media)

Ane wa Yanmama Junyuu-chuu

Based on the CG collections by Chinjao Girl. (チンジャオ娘。). "What's wrong? Do you wanna suck my tits? lol" Placed before scenes of his big sister's defenseless breastfeeding, this little brother finally gives way to his sexual drive...! Will he be able to impregnate her before her husband does!? (Source: DLsite English) Note: It has live-action AV adaptations: EYAN-181 (2022/05/17) and SONE-201 (2024/05/28).</i>

Nana to Kaoru

Kaoru is a 17-year-old virgin who has an S&amp;M fetish. He has always dreamt about an SM relationship with his childhood friend Nana, who is looked upon as perfect and is always the target of boys' eyes. Their relationship has somewhat deteriorated through the years, due to them hanging out with different people and because Kaoru is not taking his education too seriously. One day though, Kaoru's mother gives some of his S&amp;M toys to Nana for safekeeping - Nana finds the leather one-piece that Kaoru bought and tries it on but accidentally locks herself in it and doesn't have the key! Kaoru frees her of the one-piece, but then Nana realizes she may like Kaoru's hobby more than she thought and subsequently the two of them start engaging in so-called "breathers". These breathers are intended to relieve Nana of stress, stress originating from her attempts at keeping her grades and her name perfect.

Sex ga Suki de Suki de Daisuki na Classmate no Anoko

Episode 1 - 2:</b> Sex ga Suki de Suki de Daisuki na Classmate no Anoko</i> Taichi Sano is short of money and, lured by the high hourly wage, applies for a part-time job as a camera assistant. While he is waiting at the location specified by the employer, his classmate Kanna Hiiragi appears. Kanna has a reputation of being the cutest girl in the school, and many boys confessed their feelings for her. Taichi also harbors a faint hope of dating her, so he hopes that this part-time job will be an opportunity to become closer to her. However, when Taichi finds out that the filming will be for an adult video, he tries to refuse, but Kanna accepts, saying that it will help her learn social studies. Taichi feels happy working part-time with Kanna. The part-time job is going well, although he is nervous about Kanna's occasional bold behavior. However, an accident occurs with the cameraman and actor, and Taichi has to suddenly take over. Kanna ends up doing the filming instead. Episode 3 - 4:</b> Hitori Ecchi:Onanie x2</i> Nitta is in love with Natsuki Amamori, who sits next to him. However, Natsuki is an honor student and Nitta is not good at studying, so there is no way they can be a match for each other, and she is a girl beyond his reach. What's more, Nitta has a hobby that he can't tell anyone about. He masturbates on Natsuki wherever he goes, even on school grounds. As he was thinking about Natsuki again today, he heard a noise. He peeked in that direction and found Natsuki masturbating. Nitta was transfixed by her. By chance, Natsuki found him. Seeing that she was about to cry after being seen in an embarrassing situation, Nitta confessed that he had been masturbating just a moment ago. (Source: Getchu, translated)