Eh? In this case girls are bound to answers "boys" and vice versa. Anyhoo does it really MATTER? So what if the girls started it, so what if the guys did start it---it does not change anything much. People who cheat on their girlfriend/boyfriend are truly disrespectful. You wouldn't do such a thing if you honestly loved the person you're in a relationship with, even if she/he would never find out...