You start off by taking the lead but you are unused to running with breasts even with a sports bra on you feel uncomfortable as they bounce around whilst you are running and while you are being put off by this Maddi manages to just overtake you with about 10 yards left to the finish line.
All of a Sudden Maddi's breasts return to their normal size and Amanda and Liz return to normal.
Then you remember what the bet was and start to feel a bit strange, you can feel your arms and legs are getting longer, your hips widen and your waist starts to become unproportionally small. As if this wasn't weird enough a feeling your limbs lock in place, and you are nolonger able to move your arms and legs. Long platinum blond hair begins to grow down your back all the way to just above your bottom which has now rounded out to an almost heart shape as your skin starts to feel like plastic. You feel helpless, unable to move as your manhood vanishes back into your body and the DD breasts you had from the previous race grow even larger.
In a sudden flash you shrink to around 10" in size lying naked on the ground beside your old empty clothes. You realise that you can still see and hear and talk, but other than those senses you have no control over your body anymore.
"ooh aren't you the cutest little doll I've ever seen" Maddi says as she approaches you. You can hear Liz and Amanda giggling. Maddi picks you and the medallion up before the 3 girls head off to Maddi's house to have some fun with their new toy.
Back in Maddi's bedroom she pulls out an old box of barbie things from under her bed. "don't you have any clothes from a ken doll that I can wear" you shout. "now now little missy, you wouldn't look right with a perfect little body like yours and wearing mens clothes now would you" replies Maddi. You feel helpless as you have no control over your limbs, all you can do is watch as they dress you up in various little dresses, costumes and doing your hair, holding you infront of the mirror so you can see.
"How long will I have to remain like this" you ask as you realise that you never set a fixed duration on this bet. "Oh don't worry we will change you from being a barbie after 24 hrs providing you've been a good little dolly" replies Liz with an evil grin on her face "otherwise we will change you into something else that we can have fun with".