He catches his sister masturbating and he has to fuck her

Catching your sister masturbating with the advice she found at Kamasutra puts you in a situation where you have a hard cock, so it's impossible not to want to have sex with her. This guy is recording his little sister while doing a finger piece and when he finds out he says he can practice with him everything he read in the book. At first, the sister passes, but then sucks the younger brother's cock and does not take long to turn, to empty it from behind. The whore moans like a whore and has a heart attack.