I was caught with my x when I was 16 (left the condom in the garbage where mom found it). My parents did all the wrong things; I won't get into that. I think that BeingMe covered a good plan.
I think I "fell" for it so young because, while everyone was just saying - Tell the boy No - no one told me about the intense physical drive. I was completely taken off-guard by that magnet-feeling. Ever see a cat in heat? I was able to relate! I think if someone had told me about it earlier, I would have been more ready for it. I also know that there was no putting that horse back in the stall, if you know what I mean...
Good luck with the talk, Wii. I know that you will be sensitive. As crazed as my mother got, my father just gave me a hug and said I love you. And he didn't kill my then-boyfriend (bet he regrets that, now, looking down!)