They begin the swaps!

"I want your hips and ass!" proclaims the first girl. You immediately give her a concerned glance, her hips are quite wide, and while you always thought your butt was a little large, hers carries a bit more weight and feminine softness to it. The tingle of the collar prompts you to begin the haggle. It's an odd experience to be compelled to work some abstract concept, and you find yourself resisting the haggling, if ever so slightly, just to see how it's compelling you to do so. You're not being ****, you realize, just encouraged. Like it's a chip, or sweet, and you feel the urge to have just one more, even if it's not that good.

Shaking yourself from your stupor, you realize the deal has been agreed upon. The girl places the money on the pillar, and with a flash, and a jiggle, you find your taught muscular ass, and narrow firm hips are gone, now replaced by the wide hips and soft ass and thighs the girl once had.

She smacks herself on her hips, and models the now loose black short skirt for the girls. She shows her still long slender legs off, only now with more musculature on the thighs. . You have to admit, she has struck a certain rugged beauty with the swap.

Another girl, the shortest of the lot, steps up. "I'll take your height!" She declares. The others tease her for her choice, but she brushes them off and begins her bid. Minutes later you find yourself significantly shorter, and the girl now standing tall and lithe before you. She's just shy of your old height, so you guess some of it may be posture or general body shape. Her legs are now much longer, and more striking than they were, and you find that you've not only become shorter, but softer, like all the fat in your body has become squished together...

All in all you're becoming increasingly concerned. If this goes on you'll be unrecognizable...