LOL!
I look at the virginity of Mary as alot of to-do about nothing. All that SHOULD matter is that she was a virgin before Jesus' conception. Whether she was AFTER Jesus just doesn't make one whit of difference to me.
(if she dipped or smoked, who could blame her??!) :)
Just a matter of respect . . . and the absolutely unanimous opinion of the Church up to modern times (including Luther and various other Protestants as well).
If she wasn't, then that takes away from the singularity of Jesus. Plus it lends support that the birth of Jesus was like that of Heracles, making him a demi-god: half human and half god. The Christian doctrine is that he was truly God and truly man.