When your eager partner wants you to blow a load and she sticks her finger up you butt and then pulls down on your shaft is alternating directions, giving the appearance that she is a dairy farmer for something more than just milk.
Dude, how did that date go last night with the librarian type chick. Dude, total surprise, she pulled the dairy farmer on me until I blew a load into her bucket!
A depraved sex act involving 3 men gangbanging a pregnant chick, while simultaneously sucking on her lactating breasts. The chick then proceeds to return the favor and consumes the hot creamy milk that the 3 men produce after thoroughly probing all of her holes.
oh man last night was so awesome, we totally gave this pregnant chick the mexican dairy farmer last night, that milk was so tasty