He gets along badly with his sister until he sticks his cock and fucks her well

Until he gets his cock, this guy is fatal with his sister and is very upset that, for example, they have to share the bathroom during the day. It is even disgusting to have to see the sister in the toilet while he brushes his teeth. But of course, everything changes when the little sister eats his cock and gets on all fours so that the brother grabs his ass and sticks his cock well into his hole. From there they start to get along and the dusts they throw more and more bind them together.