One day a bus full of ugly people rolls off of a bridge and they all lose their lives in the resulting crash.
When they get to Heaven they are greeted by God who tells them that he will grant them all one wish to make up for the fact that they were all ugly for their entire lives.
The first person walks up to God and says "God, I wish to be beautiful"
God grants his wish.
The second person wishes for the same thing and so on and so forth until they reach the last person in line who is hysterically laughing as he reaches the front.
God, perplexed as to what could possibly be that funny asks him why he's laughing so hard.
Through the laughter, the last man looks at God and says "Make em all ugly again"