My boyfriend and I like to meet up with guys so I can have sex with them while he watches. We have met, and still look for, guys who are well endowed. I enjoy big cocks for obvious reasons but I was surprised to find out that the bigger the guy the more my b/f got turned on. Can anybody explain why he gets more turned on by seeing me with big cocks? I know it's not a penis envy thing, he can't quite explain it himself. I don't mind, I'm just curious. Can anybody shed some light on this?