The thing is since the both ,"guy and girl" being virgins I guess their first sex would be a total mess for a very simple reason "total lack of experience". What if join a flight school at your university and you are told to fly a two seater trainer aircraft only to find out that the partner in your trainer aircraft is also a rookie instead of an experienced instructor. I guess probably things will not spin out of control if one of the two or both of the partners are not virgins.