BLK-279 Making my little brother impatient and then having him cum inside is part of my sister Akane Matsushima's daily routine.

She's beautiful and has a perfect figure! But… she's too much of a sadist, so her brother can't get a girlfriend. Every day, she torments his testicles! As part of their daily routine, she checks his morning erection ~ teases him all day without letting him cum, then makes him release all the built-up semen through incredibly rough sex to satisfy his sexual desires! Unable to endure the cruel teasing, when her brother sneaks a peek at her in the bath, she further torments him with punishment-style tit-fucking! Enjoy a wealth of situations where you're relentlessly assaulted by your sister from a first-person perspective!