MIAA-609 Taking her sister's provocation seriously, I lost my mind and had violent sex with Hanamomo Shiroto.

While she was getting ready for a date, I was waiting in the living room when her older sister came home at dawn! She was wearing such daring clothes that you could almost see her underwear, and I didn't know where to look. Suddenly, her older sister started jerking me off as a provocation! Although I care about my girlfriend, I can't resist such a lewd sister's temptation! After being secretly given a blowjob or having reverse●sex, I took the escalating provocations seriously and got hooked on the thrill and taboo. In the end, even though my girlfriend found out, I didn't care and went wild with piston thrusts and in-out ejaculation!!