Well, it's been more than a few years since I had that "little talk" with my Dad. Somehow, I feel Dad's sensible approach of discussing sex with his son, in an upfront and sometimes graphic manner, has gone out of style.
"Son, I don't want you to ever push a girl into something she doesn't want to do, nor do I want you to push yourself into something you're not ready for. I think that teen sex is a mistake, but it's not a mistake I want you to die over, or ruin your life over. This is a box of condoms. (Followed by detailed instructions on how to use them). If the box gets empty, come to me and I'll get some more for you. You can tell me anything; this is a hard time for any young man, and I promise I want to help, without getting judgemental. Don't tell your Mother we had this talk."
That's about how it went with me too :-)