"Man Lou, you sure do smell like Cock water!" exclaimed Seamus. "Yeah, I was out pillaging with the boys and we all pissed on each other... It's a part of our pirate-esque ritual." replied Gay Lou the Pirate.
After sex you pass out with a condom still on. You forget about the condom then go to take a piss. Then rubber fills up with hot nasty post-sex piss. Now you've got a very dangerous situation on your hands