Alright guys, I was wondering what you would do in this situation. I was at a house party talking to a chick. She seemed interested, the convo was going good but then this guy I know walks up and says, "Hey, this guy has a huge dick!" (referring to me.)

To be honest I didn't even notice the girl's reaction because I was just like wtf where did this guy come from? How would you deal with this situation?