I think you secretly lost the bet and want to dress up.

Aww, she is EVIL!! Well, if you have no other choice.. I suggest you:
1. wear some cute stilettos that wrap up around your ankles like this:
http://img217.imageshack.us/img217/5237/…
- any shoe store at the mall
2. babydoll dress like this: (can be found at places like forever 21 or charlotte rusee)
http://www.styletots.com/wp-content/uplo…
3. wear pink nailpolish so it'll look even sillier.
4. wear fake EYELASHES to glam it up a bit.
http://www.ehow.com/images/GlobalPhoto/A…
5. And curl your hair with a curling iron if it's long enough
6. Cute pink lipstick and face powder. (don't forget to shave!)

HAHA now that's a laugh :D

I lost a bet to my sister and she said I have to wear a babydoll dress and peep-toe stilletos. She said for me to ask everyone for links of cute dresses and heels. She also wanted to know how to do my hair (shoulders), nail color, and any makeup and lingerie I should wear with my outfit. I have to go with her to the mall all dresses up so she says to be as specific and cruel as you want.