Reluctantly follow

The girls let me go and instantly I have my hands clamped over my crotch, difficult as it may to cover considering it's size and excited state. Despite the warm weather, I shiver as a breeze passes over my bare, still soaking wet skin. Sarah and Jessica, for their part, have already started walking down the road, and with a look over my shoulder back at the locked door, I start after them. I don't get far before a pebble stabs into the sole of my bare foot, and I curse.

"Come on," I shout after the two of them, "can't I at least get some shoes?!"

Jessica rolls her eyes, while Sarah giggles. "You should have thought of that before you decided to take your sweet time," Sarah says.

"Lucky for you we're so considerate," Jessica says, "and packed your sneakers into your backpack for you," and I see that, in addition to each of their own bookbags, Jessica is holding up another- mine. I start forward and, after a moment of situating myself, go to reach for it while still covering my dick, but Jessica pulls back. "I don't know if you really deserve it though."

"You've got to be kidding me," I start, and I go to grab it from her again, but she pulls back and this time, as she continues walking backwards, tosses my bag over my head to her sister, who'd circled around behind me. I turn to face the blonde (hearing a camera click behind me as Jessica snaps another shot of my ass) and find her smirking.

"You know, if you want this back," Sarah says, "maybe you should try taking it with both hands." And again, she tosses the bag over my head. I try to catch it one-handed, but miss, and Jessica catches it behind me.

"Not that you'd have much luck either way," the bluenette continues, "but if you decided to move those hands maybe we'll be nice and give it to you after all!" She tosses it again, I miss again, and the other twin catches it behind me, again. This continues for a good while until, at the bus stop, both sisters walk around until their both on the same side as me, but Jessica still goes to throw it over my head; into the street! I turn around so that all they'll see is my ass, and finally I jump, both hands outstretched to catch it... and I do! For a couple of seconds, I just stand there, happy to have something I could cover myself with besides my hands.

And then I realize that the bus has arrived. The bus loaded full of my fellow students, coincidentally mostly senor girls, starting straight out the window, phones in hand, at my naked body and still halfway erect cock. The bus's doors hiss open as I quickly move to hold the bag in front of my shame, turning a deeper red than I even already was, and Jessica and Sarah walk past me, laughing and high-fiving each other. "You coming, or what?" Jessica turns to ask me, and with a dirty look I slowly start onto the bus. The bus driver, and 50-something woman who'd been with the school a good while, looked at me with a bemused smile; this was probably a first for her career.

"Lose a bet or something, kid?" I heard her chuckle as I passed. I muttered a short response, but it was drowned out by the tittering and cheering of the buses other occupants. I realized, standing in front of them, Ms. Driver getting an extended view of my ass, that there wasn't an empty seat- I'd need to find someone to sit next to who A) didn't mind me being naked, and B) didn't really like that I was naked.