Astonished girlfriend can't stop sucking penis

A close friend of mine has a smoking hot girlfriend who's always down for some wild action. The other day, he brought her over and things quickly heated up. As we got to talking, she decided to show off her skills and went straight for my cock. She took me deep down her throat, leaving me in awe of her talent. I knew right then and there that I had to have her.We moved to the bedroom, where she continued to blow me like a pro. After a mind-blowing deepthroat session, she eagerly spread her legs, inviting me in. I took her in missionary position, fucking her hard and deep. The sight of her mature body writhing in pleasure was enough to make me cum all over her face. Her mom walked in on us, but she didn't seem surprised or upset. On the contrary, she joined in, making it a wild threesome.