The protagonist of hentai Yoshi-kun meets his older brother’s wife Kyoko-san. The hero is fascinated by the beauty of Kyoko and by all means he decides to fuck her. Just at this time, the brother leaves on a business trip and our hero decides to act. Yoshi’s girlfriend Momona decides to help with Kyoko’s seduction and they all go to a love hotel together.
ママ喝っ ~乱れるママたちのヒミツ~, Mama Katsu: Midareru Mama-tachi no Himitsu, 妈妈活