Study Aide «Sugawara Koushi x Reader»

Prompt:
"You're kidding." / "We'll never know unless we try." // "I've been intimate with you alright but I've never initiated ..."

You weren't a dumb student but you're not that smart either. Ever sunce you enyered University the only subject you can't quite grasp is Chemistry. You had to pass your upcoming exam or else your summer bream is doomed. Luckily your awesome boufriend offered help with studying. What type of studying? It's for you to experience.

Note: Planned to be a one-shot but I'm considering making a part II it you guys want.