Bianca wears Amy's too small clothes.

"I think," Amy said, "you should borrow some of my clothes for the party, don't you? After all, you'll be playing the role you intended for me, so it's only fair you dress the part."

"What? There's no way your clothes will fit me?" Bianca was right, of course, she was almost half-a-foot taller and significantly curvier than the girl she used to torment.

Amy just smiled back at her. "Yes," she said, "that's the fun part. Now strip."

Slowly, reluctantly, Bianca stripped. Amy looked her old bully over. She has wide hips, a big round perky bubble-butt, and large, full breasts. It was the sort of body that flat-chested, skinny Amy had always wanted. Seeing her tormentor with all the endowments she lacked filled her with jealousy that fueled her righteous rage. It also stirred something else inside her, an attraction she'd never been able to admit to herself.

It would do no good for Bianca to feel good about her body, though, not if she was going to feel properly humiliated.

Amy stepped forward and roughly grabbed Bianca's breasts, lifting them and weighing them in her hands.

"You know," she said, "I used to be jealous of your big tits..." she paused to pinch Bianca's nipples and roll them gently between thumb and forefinger. They hardened immediately, and Amy was gratified to hear a dramatic intake of breath from her old bully. "But now I realize they just make you look like a cow. Them and that fat ass of yours."

"Better that than a flat, boy-chest like yours," Bianca said, defiantly.

Amy just smiled at her. "I think you're forgetting who has the power here. It's a bad habit." Then, to make her point sink in, she slapped Bianca once, hard, right on her smoothly shaven cunt.

Bianca's eyes got wide as she brought her knees together defensively.

"I can do whatever I want to, to you. And if you ever step out of line, I can punish you however I want. Unless you want to go to prison, of course. In fact, I think you should call me 'goddess' from now on, whenever we're alone. Now, ask me to borrow some clothes."

Bianca looked furious, but she took another deep breathe and said, "can I borrow some clothes?"

"What was that?"

"Can I borrow some clothes, goddess?"

"Why, of course! You can't go to the party dressed as you are!" Amy opened her suitcase and started unpacking. "Let's see, you want to go flirty? casual? fancy? So many choices...of course, I don't want to give you any of my favorites since you'll just stretch them out...Ah! Here we go. Perfect."