Today my girlfriend's roommate kept bending over in front of me while I was at their apartment. She's a hot but kind of nerdy Chinese international student with long legs and nice boobs. Her ass isn't too good, but I still got turned on when she was bending over. She also keeps inviting me over and offering to make me food and stuff. I think she might be interested. How should I ask my girlfriend if she'd be willing to do a threesome? I'd totally fuck this girl if my girlfriend felt comfortable with it, and I think this girl wants to fuck me too. Pic unrelated