During the week, she keeps strictly to her rigorous schedule, detailing Harry over text about essays she's working on and live-relaying the subjects of interesting lectures as she's attending them. Harry teasingly calls her a nerd, which backfires on him spectacularly when Draco brings it up the next time she has him bent over his desk with three fingers up his arse. She makes him apologise for it until he comes untouched. He thinks about that every day for the week after it. 