Yoshino Kanako is happily married to Tomoya and they are preparing to have a child together. Everything is going great until Kanako meets with her father-in-law, Makoto, whom Kanako is already familiar with unfortunately... Something she never disclosed to her husband is that seven years ago she prostituted herself to abusive Makoto. Fortunately for Kanako, Makoto agrees to keep the secret on the condition that they re-establish their intimacy.

Fumi Hoshiya works at a beauty salon, hoping to become a hairdresser someday. Her popular and charismatic manager, Sousuke Nanase, often chastises Fumi for her mistakes in the salon. Nonetheless, Fumi idolizes Nanase as a kind mentor and role model.One day, Nanase invites Fumi for an after-hours practice beauty session. Little does Fumi know, her "beauty session" will entail more than she expected, with Nanase touching every part of her body for some very erotic results!

Machida, a timid virgin boy transferred to an all-girls school because obviously this is normal in Japan, and ends up targeted by Rio and Mao. Machida, who was pressed against their breasts and teased over the edge, couldn't stand it and blew his load in a classroom full of girls! Rio, the only one who noticed this, took Machida to the infirmary...

The two bostoner elite students George Heinesen and Kira Akishiro gain suddenly the chance studies and their common hobby, flirting, to combine: the world famous millionaire family Gloria employs George and Kira as private tutor to educate their five daughters Etana, Cecile, Naomie, Sharon and Mary.

Based on the manga by Sanbun Kyouden.A housewife gets raped by a bunch of men. As it turns out she likes it and her life becomes a succession of perverted sexual adventures.

Yurina Suzukaze is a young lady teacher who is extremely popular with the male students at the school. But she falls into the trap of her colleague, Sakakura, who has an unusual liking for her, and for half a month, she is confined to a training room in the basement of the school, where she is trained as a meat slave.

Takedo Nogawa is the spoiled son of a wealthy industrialist. When he was younger, he was infatuated with Yumi Okamoto, his father's personal secretary. But as she was also his father's personal sex toy, Yumi was off limits for Takedo.After he gets into a traffic accident with Yukie Kitazawa, an average housewife, Takedo sees an opportunity to one-up his old man. Per a contract drawn up by Yumi, Takedo allows Yukie to waive her legal fees if she becomes his sex slave.Not to be outdone, the elder Nogawa sicks his secretary on Yukie's teenage daughters, using the contract to exploit them for his own twisted desires. A sick game ensues as father and son compete to strip the Kitazawa women of their dignity. Ai Shimai: Futari no Kajitsu is a story of power and those who abuse it.

Yunika, who is very popular at school, receives an invitation from her best friend Risa to study together at Risa's home. Yunika fears that Risa's older boyfriend, who is said to have greatly improved her grades, will also come. When she arrived at Risa's later in the day, Yunika caught Risa and her boyfriend having "fun" with each other.

After becoming a tutor for his sister Miu and her friend Riko, Kanata quickly discovers that he is much more popular than he makes himself out to be.

This story about a married woman, as is usual in such stories sexually unsatisfied in married life, and decided to make up for lost time with her brother, who came to stay with her husband and children. What started as a harmless joke on a drunken bench, will grow into a constant frenzied sex always and everywhere, at any convenient opportunity.