Was making out with my girl tonight...both of us in our underwear. So she gets ontop of me and I'm very aroused at this point, and i grab her waist to kinda pull her in and she slips...landing straight-on-my-cock. My dick was popping through the hole in my boxers and standing straight up, and for a second I thought i had somehow broke my dick. Immediately, I jumped up and checked for bruises/blood/anything, just to see whether or not it was still on contact. (we havent even had sex yet).... nonetheless, everything turned out fine in the end...although it hurt like hell for a couple minutes and she felt horrible about it. Something I wouldn't wanna experience again though, and just thought I'd post this as a safety precaution if it hasn't happened to you.