My girlfriend's cousin is an unfaithful busty redhead who wants to suck my cock and ride it like a cowgirl

I'm going on a trip to visit my girlfriend in her city, but when I arrive her cousin greets me in a very sexy robe and tells me that she's not at home, that she had to go out to work unexpectedly at night. She meets her boyfriend at the house but he is in house, she starts flirting with me unexpectedly on the balcony and after a few kisses and warming us up she starts sucking my cock while I'm standing, we end up fucking in doggy style, and she rides me like a real cowgirl until she receives my semen on her big tits