Okay, so this game is really simple, I saw it on the Harry Potter spot. Basically, the one starting writes a line about Twilight, then the next person writes a line that rhymes with the one before. Then this person writes a new line, which the next person must write a rhyming line for etc.

Example:

maja3322 - Edward and Bella belong together

cullen-fan - They aren't frail like the weather
Jacob tried to get between them

tooch - But their love is a real gem
Rosalie has her Emmett, Alice has her Jasper

And so on and on and on...

So, here is the first sentence:

Edward is a sparkly vampire