Ask for assurance

"Well, maybe," you say. And the light of hopefulness in Rebecca's eyes gives you courage. "But how do I know you won't trash my clothes or something?"

Madison laughs. "You know, I honestly hadn't thought of doing something like that! You're devious." You're not sure which is scarier: cruel Madison or happy Madison. You don't feel devious, but you are starting to learn that she is.

"Tell you what," Madison says, and as she smiles, you think that cruel Madison and happy Madison might actually be the same person. "We'll do a little trade. You leave your clothes here while you dash to the locker room. But you can bring Rebecca's clothes with you."

Your mouth literally drops open, and you're sure you're blushing again. Could this seriously be happening?

It's not like you haven't imagined Rebecca without her clothes on. Especially since that incident on her birthday. Without meaning to, your mind flashes back to that glorious day a few months ago when Rebecca showed up at school in her "I'm 18 Today" t-shirt.

You suspected that Rebecca had done a little "celebrating" the previous night; in fact, you heard her tell a friend that she hadn't gotten any sleep. You have math class with Rebecca, but that whole period you could only focus on one angle: the one between her legs. She happened to sit facing you; and while that meant a very occasional upskirt from your vantage point, on this particular day, she was really giving quite a show.

She was dead tired and was struggling to focus on the test that Mr. Chapman had been warning them about for a week. So she didn't notice that her legs had positioned themselves much wider than usual, and they stayed that way for most of the class. As she gnawed on her pencil eraser, she even bounced her legs up and down, nervously and seductively. And you could see it all. From her sandaled toes up her smooth calves to her luscious thighs and right to the small white thong that barely separated her pussy from your hungry eyes.

From the looks of it, she bombed the test. You did too, obviously, but you always felt it was worth it. You'd fantasized about that day ever since, and in recent weeks, your fantasies had started to escalate even more.

"He's blushing again," Rachel says, snapping you back to the present. "And so is Rebecca!"

She's right. Rebecca has flushed a glowing pink that contrasts starkly with her black hair and accents her blue eyes even more. She starts to edge away from Madison, prompting Jillian and the other girl (Mia, you think) to grasp her arms tightly again.

"Well, that's only natural," Madison says gleefully. Then, "Okay, hot stuff, time to decide. You ready for a clothing swap?"