Ok thats nasty... yeah my POV on it is wait until wedding night...
and yes I know the old saying that "you never buy a car without test driving it"... but you also never drive the car at 100mph+ during the test drive either
Just something to think about... I really think waiting until marriage can make the experience even greater than just doing it at a normal everyday time... my GF and I have been in my room plenty of times when my parents were outta town, so its not like theres a lack of oppurtunity, its just the thought of being able to be at least partially pure for my wife makes me happy... I sure would hate it she slept around before marrying me...
