Keep composed and dress conservatively

A.N. Thanks to MalionX for the suggestion. I've modified it a bit. Will probably do another one with actual nudity but felt inspired.

Chaz took a pink crayon and thought about what to write. The best way to mess with Piper and most of the study group would be with the stern words of their history teacher, the one course they were meeting for. She was an old severe woman that always went on about being always proper and perfect in everything. She always came to class in a full suit, even in summer. And she would reprimand students who slouched! In fucking college!

Laughing at himself he wrote in big pink letters:
-Students should always keep composed and dress conservatively-

Grinning from ear to ear he propped up the chalkboard to show the writing to his friend. When she actually read it her brow furrowed and she read the rule out loud with an angry expression. "Students should always keep composed and dress conservatively? Absolutely not! I don't think so! You can't expect to mock me with Miss Bancroft's words and then expect me to be happy about it!" As she said so she looked down at her tied up shirt and blazer and just started unbuttoning.

Chaz thought about the words he had written, reading them again. Piper was right, but he didn't have a change of clothes and was way too overdressed. He decided to just discard his pants, throwing them to a side of the classroom and unbuttoned his shirt too. Then, just to be sure to get his other friends with the prank, he went to the door and hanged the board on the entrance. When he came back to his seat Piper was sitting legs spread open on the desk, her bra visible under her open shirt and skirt hooked up until her panties were visible too, especially at this angle. Chaz decided to prepare for the session, so he put his shoes on a nearby chair and opened the book, waiting for his other friends.