@lili4783263,
well some guys prefer it...
and i really cant think of ever hearing a guy say he would freak out
personally it doesn't make a difference "my current girlfriend was a virgin and i was her first" although if he really does care about you it might put some pressure on him because a virgin at 24 doesnt just happen! as you said you made that decision to not have sex with just anyone, obviously a guy would like that in theory but to actually be your first indicates you are serious about the relationship and if he isn't as serious as you then he would probably put a little pressure on him.
so try to figure out how he feels about you and just like everyone said definitely talk about it
because if you wait till ur already in bed then tell him he might freak out cuz he was caught off guard
but generally no guys dont freak out about virgins