Help Janice with Calculus (Attraction-Janice+10)

Janice texts him out of nowhere asking if he is any good at calculus. He is, and she knows it, which makes him wonder how long she has been sitting on that question before sending it. He heads over and they set up at her kitchen table, her notes spread everywhere in that organized chaos that somehow makes sense only to her. He walks her through a few problems and she is sharper than she lets on, picking things up quickly but asking follow up questions just long enough to keep him there. At one point she gets genuinely stuck and leans into him slightly while looking at his working, not dramatically, just naturally, the way you do when you forget to keep your distance. He explains it slowly and she gets it, looks up at him with this quiet satisfied smile that has nothing to do with calculus. He stays longer than the math required and neither of them brings that up.