MIDA-711 My drunken, big-assed sister-in-law goes on an indoor exhibitionist rampage in a tiny bikini! I succumb to the temptation of her big, digging-in ass and get fucked drenched in sweat, fucking her crazy ass and cumming inside her 20 times.

One scorching summer day, Yuzuru visits his brother's house, only to find the air conditioning broken. Unable to bear the heat, his brother's wife, Unpai, strips down to a micro bikini and seduces him. As the heat makes him drink more, he loses control and can't resist his sister-in-law in her tiny bikini... This is the story of how he and his sister-in-law, in a lewd swimsuit and with a slutty big ass, had a sweaty, passionate encounter...