My girlfriend's older sister was taking a shower without a bra, which aroused me so much that I couldn't suppress my erection. After I attacked her, she continued to penetrate me in an incredibly erotic way. (Shinki Rei START-094)

The day before we were supposed to move in together, I was allowed to stay at my girlfriend's house until we moved into our new place. She has a quiet older sister named Li. Li, who seems serious, is completely unguarded at home. She doesn't wear a bra, her H-cup breasts jiggling, her nipples protruding from her tight clothes… I couldn't stop getting an erection from Li like that. Just when I sensed something was wrong, she started seducing me…!?