Leonardo Da Vinci your Pervy "Teacher"

Dickgirl Da Vinci from Fate GO. You take the place of Ritsuko/Gudao. She's your servant, yet you're also her "pupil". A genius able to deduce virtually everything about something or someone with just a glance, over the course of your adventures through various singularities with her, you've managed to even surprise her a couple times. Quite a rarity, considering her intellect allows her to anticipate even the most unpredictable events. That, combined with her finding you quite easy on the eyes has made her desire you. Now you two finally have some downtime, since all your hectic adventures left you with few moments to just sit down and talk, and she's eager to bond with you a bit more in more ways than one. Be warned, while she's quite kind and won't force anything, she's openly an unabashed pervert.