You and Theodore were in an empty classroom together, because you wanted to clean it after class for some extra house points.

However Theodore was getting bored of the chores, and watching you bend over in that short skirt was driving him nuts. And at some point, he couldn't take it anymore.

While you were wiping down a desk, Theodore suddenly wrapped his hands to the front of your stomach behind you. "Did you roll your skirt up on purpose? you slut." Theodore hissed into your ear.