If you buy a dozen gerbils, you have to put them in the fridge. If you leave a dozen gerbils in a fridge for ten minutes then they slow down just enough for you to shave thier bodies (with shaving cream cuz you dont wanna hurt them, right?). If you shave a dozen gerbils that have been in the fridge for ten minutes, then you inject them with a generous amount of cocaine. If you have completed all of the above, you should now have 12 squealing fist sized monsters, ready to jam up your ass...enjoy!
Man, I jammed those gerbils so fuckin hard last night they were clawing on my rectum!