She told me that she get bored from my cock and thats why she will start up to fuck with other guys. The next day she came home with an guy and she told me to shut up and gave me the order to watch it. The got naked and showed her his big dick. She got down to him and start up to suck his cock. I saw how much she enjoyed it. After the blowjob warm he fucked here in different positions. What for a alpha fucker. He fucked her hard with his huge cock and i had to watch how his cock penetrete my girlfriends pussy. This was the start up for our cuckold relation.