if he asks you to...

true but no matter how sure u r..wat if sth happens the last minute and the engagement is called off? or God forbid sth else happens tat wedding cant happen with tat fiance? in that case a gal has lost her virginity n the guy..i guess just to be safe (keeping Islam out) it's prolly wiser to wait until after marriage cuz even if sth bad happens after marriage, next time gal marries, the prospective party will know tat she's not a virgin for legit. reasons..but in the case of gf/bf or fiance u will either be fooling the prospective party if sth were to happen to bf/fiance or inviting potential probs..