Fucking with his girlfriend's sister

There is no doubt, this is what we call a morbid polvazo. We have an 18 year old boy fucking with his girlfriend's sister. He fucks her for a while. She is an obedient little fox and does everything she is told. He sucks his cock, he gets on all fours, he rides on his cock with his huge boobs ... finally he orders that when he tells him he sticks out his tongue and looks at him. It is just at that moment when the running jets are shot over his face. After that he rubs all the semen on top like a vicious one. What will the cuckold think of his sister's whore?