When you have sex is a car outside a bar in vegas for so long that the pussy gets dried up and you already used up all your spit, so you grab the heineken that you walked out of the bar with and pour it on her butthole to try and get that last
little bit of
penetration in before its sealed dry shut, and it works for a second, before you pass out in the passenger seat. Then you wake up
in the morning and piss heineken out your inflamed infected penis hole, and its not an STD.