Yes, but here's another idea

Anna and Claire breathe a collective sigh of relief as they open Claire's bag to find their clothes. Claire gets busy sorting through and separating them out, but Anna looks curiously at the sight of them in the bathroom mirror. Claire, nude from her knees up, and Anna, as naked as the day she was born. As much as she was looking forward to the moment that she was able to get dressed again, she suddenly feels like she doesn't want this moment to end yet. Anna begins to smile as a thought begins forming in her head.

"Dare," Anna says, stopping Claire as she's about to step back into her panties. Claire looks up at Anna, wide-eyed and jaw open.

"Are you serious? How much farther could we possibly push this than we already have?" Claire asks, standing up straight, panties still in hand. "We've both gone to class naked. What more could we possibly do today?"

"We stash our clothes in my locker. Masturbate to climax in our next class, but don't get caught doing it. If we get caught, we have to spend the rest of our school day, and any potential detention time naked," Anna says, her voice quivering only slightly at the thought, "If we don't get caught, we get our clothes from my locker and have the option to get dressed if we want to." Claire stares at Anna, barely believing the words she's hearing.

"This is crazy. You are absolutely crazy," Claire says, looking at her reflection in the mirror. It's easy to tell that Claire wants nothing more than to get back the safety of her clothes.

"Would you rather get a penalty? I could think of a few things I can have you do later that's worse than what I'm asking. Besides, I'd be doing it right alongside you," Anna says, smirking at her best friend, arms crossed underneath her breasts pushing them up prominently. Anna leaves the ball in Claire's court, hoping that she says yes to prolong their naked adventure.