Trying to Puke

A policeman cruising past a Bar after closing time notices
two motorcycles still parked out the front. He goes round the back of
the pub only to find two bikers, one with his index and middle fingers up the ass of
the other.
"So what's going on here?" he asks.
The biker replies "My buddy here has had too much to drink and I'm
trying to make him puke."
The cop says "I think you should be sticking your fingers down his
THROAT!"
The biker replies "That's what I'm going to do next!"