Oppai Heart: Kanojo wa Kedamono Hatsujouki!?

Based on the erotic game by Bishop.

Ryuya has an older sister, Miya. He lives a peaceful school life with his friends. But one day, he and his friends accidentally drink a medicine juice. Once you drink it, you'll become sexually sensitive and get excited. The breasts of the girls who drink it will get bigger and they will need to have sex to cool down. Also, to make a vaccine, they will need to get pregnant. Ryuya starts having sex with the girls to cool them down and make a vaccine.

(Source: ErogeShop)

Episode List (2)

Large Breasts 95% Nakadashi 79% School 70% Pregnancy 60% Incest 60% Boobjob 50% Fellatio 50% Public Sex 40% Cheerleading 20% Cunnilingus 20%