You should totally go with those girls. Heres the thing: Mormons are very very strict about their girls being virgins at marriage. However, "Virgin" is a term designated vaginal ONLY, the hymen must be intact. However, for a great many Mormon girls, all other activities are fair game.
Mormon girls are freeeeeeaky...what you do is pretend you are seriously considering conversion the the faith, but you are conflicted and would like more time alone with them to discuss it at length. Then you swing the conversation around to rules about sex, what's okay and what isn't, and gradually get them worked up into a frenzy. You may come away with a few scars, but damned if you won't have memories to savor during some future dry spell...
And yes, I do mean all other activities.
And yes, I have successfully done this more than once.
And yes, I know I'm probably going to Hell for it.
And yes, I'd do it again in a minute even knowing about the hell part.
My rod and my staff, they will comfort thee, honey. Just come over here a minute and let me rub your shoulders. You look so tired from going up to all those doors...