Reverse NTR sex with my girlfriend's sister - A masochist who completely accepts my sadistic desires and ejaculates - Had sex with her for three days behind my girlfriend's back - Deep throat/chokehold/abdominal crush/cumshot - Shizuku Kawakami FOCS-265

My new girlfriend is adorable, and we get along really well, so she's wonderful to me. But she has one flaw… she won't tolerate my sadistic sexual behavior. It's a shame, but there's nothing I can do about it. Just then, her younger sister, Shizuku, appeared. Shizuku tells me she can do things her older sister can't…!? A reverse NTR encounter with her sister, including acts of suffocation, spanking, and ejaculation inside her!