a) The butt you've always wanted.

b) Yours of course!

c) The butt that's going to marry a very famous megastar very soon.

Unfortunately, it's not b) though GOD I wish it was.

It is Jessica Biel's butt. No wonder JT has asked her to marry him. Could anyone ever leave you if you had a butt like that? It would certainly make it harder.

She's swimming in Puerto Rico, visiting Justin on his movie set. Does anyone else want him to quit movies and put out another album? Like seriously, the acting thing is okay, you're good, no question but you're no de Niro. You are however, a leader in your own field of music. Why be mediocre in one thing when you can excel in another?

Here's Jessica from the front. I love that she's not your typical reed-thin Hollywood body. She has muscle and shape. Gotta respect that.