Friend's ex-girlfriend has sex in reverse cowgirl position in hotel

Amateur guy and his friend are talking about their girlfriends. Suddenly, friend’s ex-girlfriend appears. She wants to have sex with him. So, they go to the hotel room and start having sex. At first, she is on top, but then she lets him to fuck her from the back. So, he can look at her sweet ass while fucking her. He likes it a lot! And she also enjoys this position, because she can bounce on his cock very hard and fast. It seems that she is a real slut, because she is moaning so loud and asking him to fuck her harder. He likes it a lot, because he always misses his ex-girlfriend. So, he fucks her as hard as he can.