FSDSS-236 For two days, my girlfriend's younger sister and I were absorbed in forbidden sex, which I couldn't resist and couldn't resist. - Sora Amakawa

Forbidden x absence, an extremely exciting situation that must never be known. - ``I wanted to have sex even if it meant betraying the person I love...'' I held back, and the moment she left the house, I released my sexual desire. - As if to blow away our guilt, my girlfriend's younger sister Sora and I fucked each other and clashed our heightened lusts.