Pink Sock- When doing a girl in the ass, you donkey punch her in the back of the head so her a**hole tightens up and you pull your penis out so that her lining of her ass is around your penis like a sock.
Mud Puddle- Girl sticks anul beads far up your ass and pulls them out quickly making you sh*t all over the place, she then rolls around in it like a pig.
is this normal?
Other than that, That is totally normal because Humans are filthy beasts.