Part of the problem is the “given” that teens will have sex.
If you teach them correctly, there is a good chance they won’t. Before finding our “One and Only”, my mother didn’t, I didn’t, many Christians don’t (including my own 20 year old Goddaughter) and with many prayers, my daughters won’t.
Start teaching these girls that respecting themselves is more important and saving sex for a husband is a fine gift. Teresa Tomeo has a new set of books for Catholic Girls. I got them for mine for Christmas.
http://www.runwaytoreality.org/
How about emphasizing the MALE portion? Girls have always had more locks on them copulating; it’s natural partly because a) they’re saddled with the pregnancies/children and b) intercourse is literally an invasion of their bodies, while for men it is not, per se; hurts more potentially too.
I agree that it’s not a given. I myself didn’t do ANY kind of “joint” sexual activity until I was married (at age 35, turned 36 the next week - I know I’ll probably be pilloried for being “so old”). I was trained that way. I could’ve had plenty, too, if I wanted casual sex.