Three drunks show up at the local whorehouse and the madam realizes they are too drunk to be able to function.

One by one, she sends them up to a room containing an inflatable rubber female doll.

The first drunk returns bragging about what great sex he just got done having the second one does the same, but the third one returns with a puzzled look on his face.

When asked about it by his buddies he says, "I thought I was doing great until I bit her on the tit, she let a fart and flew out the window!"