A hand on your thigh.

His hand moved to your thigh where he rubbed your thigh, you blushed and stopped writing but he still continued despite his actions. This was unfair!

He moved his hand further up, rubbing your suddenly wet pussy through your white panties. You moaned quietly, trying to conceal it by covering your mouth and stopping your lips from moving at all to form the sound.

He smirked when you did and looked at you, chuckling when he saw how much you were struggling to concentrate now with such a distraction.