There are many books on sex, both the mechanics of it and the teachings about it, targeted at Catholic teens. Father Mike Schmitz at ChurchPop, a website designed for Catholic young people, also has posted video talks about the Church teachings on sex targeting a young audience. Other sources of Catholic teens learning about sex include their parents talking to them, their doctors talking to them, sex education classes in schools (my Catholic school had one), their peers, books that focus primarily on bodily mechanics like “Our Bodies, Ourselves”, and the popular culture.
The nature of this forum as well as the laws of the US and the sexual abuse issues in the Church make it inadvisable for us to be discussing explicit sex with teenagers on this forum, or in the presence of teenage readers. Not to mention the fact that many of us adults see sex talk as a private matter between adults and not fodder for Internet posts.
I have to be honest - you seem to be trying to justify your argument in favor of explicit content on the forum by suggesting we should be posting it here to educate minors. That is just creepy.