Nice!
Very funny, and you didn't have to resort to any crappy gags like dicks, overabundance of gore, or shock humor, which is a plus. Your actual animating is good, nice frame by framing and no abuse of tweens, but I have one giff; your line quality could be improved alot simply by using a smaller brush thickness. As it is now, it looks kinda sloppy with it being very thick and uneven, so that's just a little suggestion I can make. All in all, good short, made me laugh more then once hehe.