Gay Joke

There was four gays sitting in a bar, competing in who could stuff upp 
the most in their butts.
The first one said:
  - I can stuff upp my fist!!
Then, the second one said:
  - Thats nothing! I can stuff up two fists!!
The third one said:
  - How petty you are! I can stuff up a watermelon.
  - Thats nothing, said the fourth one, wile he slowly slipped down 
over his barchair.