EDGE-404 My older sister, who usually doesn't talk about dirty jokes at all, suddenly became an erotic woman at night when her parents were away.

EDGE-404 My older sister, who usually doesn't talk about dirty jokes at all, suddenly became an erotic woman at night when her parents were away.

A serious older sister who usually never talks about dirty jokes. One night when my parents went out and we were alone, my older sister suddenly became erotic and suddenly attacked me, my younger brother!