Home › Forums › Anal sex › I pissed when my partner put his penis in my anus? › Reply To: I pissed when my partner put his penis in my anus?
Well you answered your question yourself, you might be holding your piss for a long time and when you felt the pressure in your other hole. The pressure made you break the other pressure that you were holding your piss with. In simple words Humans are not use to multitasking so when you divert your attention to one thing the other thing stops.