Which is also apparently why cows dont have to wipe their bum's with toilet paper :cens0r:
At least that's how it was explained to my curious 11 year old self.
Inner sphincter partially prolapses then withdraws again at the completion of the act as it were.There were hand gestures and everything at this point but I was backing away saying eeewww a lot.
Wonder if I could have one fitted myself - like an extra o ring from a garage.Could save a fortune on andrex in a lifetime.
**dreams the Scotsman's dream of money saved and spent on snakes**
dr del