Shy Girlfriend becomes a Slut with BF’s Permission

This shy girlfriend has always been a slut and today her boyfriend has suggested sharing her with another guy. She is shy but very excited to get fucked by another guy in front of her boyfriend. Her boyfriend is a cuckold and loves to watch his lovely GF taken by another man. As he gives her permission to have fun, she was shy at first then her inner slut got out and spread her legs for another guy. While she was getting fucked, her boyfriend sat beside and monitored her as he got aroused bt this sight.