hi guys... if u do that on a ons with a girl from the street, u have to let her know, that whatever happens does not matter, in thermes of liquids, that sex needs to be dirty and anything turns u on...
u have to let her know those things, otherwise she ll be ashamed or not feel comfortable enough to true passion...
every girl is different tho, some might not care if they pee in ur bed... but believe me most of them do...

a good advice from a girl