man I noticed this mark on my shaft that kind of looks like a bruise but I'm not sure. **** I hope its not an std. its all I can think about right now. is it even possible for std's to show up 8 hours after sex? I find it hard to believe you can bruise your d!ck during sex, at least I never have before. the doc said he kinda thought it looked like a bruise too but wasnt sure. i gotta go get tested tomorrow for all sorts of sh!t. **** im sh!tting my pants right now.