A letter to my hot professor

Katherine is a pretty normal girl-at least from the outside. But she has a secret...
She's in love with her hot professor Barney.

Quick insight in the story:

Barney taught history, which she normally found boring. But there was something about the way he dragged the chalk across the chalkboard. The way his biceps trembled and throbbed, the way he licked his lips when he made a mistake and wondered if he should clean it up with a tissue from the back of the classroom (which he would have to walk to) or just spit into his hand and wipe it away like that. She wonders how much spit he's lost over the years, how much spit the board had to withstand and how she would like to be his little spit slave instead, so he wouldn't have to lose so much of it.