Panties

"Panties, I guess," you mutter. "That seems like the best of those choices."

Kim coos. "Ooh, I like the way you think, professor! You can start with mine! I've only come in them four or five times today."

And with that, Sara yanks the panties off Kim and holds them up in front of your face. They reek of sex, but you have ****. You open your mouth obediently and Sara shoves the panties right in.

Kim starts bouncing her ass in front of you, every little jiggle reminding you just what you're sucking on.

Sara steps behind you and starts playing with your nipples.

"Oh my god, professor! Are you getting hard from sucking on filthy panties!? Are you some kind of panty perv?"