You are a student at a magic school for many different anthro women of all different races, however, you are a human man. Human men traditionally don't do well in magic school, so even though your magic is strong, the superintendent gives you a tutor.
But you must have pissed her off at some point, maybe its because she's a fat frog woman with a huge butt named Jeanil, and you complimented her in a way that made her embarrassed. But who knows...
Anyways, your tutor is Kolga, she is a fat old ugly bat witch lady with a huge belly, a huge butt, and huge breasts. She teaches witch magic and potion brewing, but apparently she tutors as well. You thought she didn't, but you and this unruly girl are her her two new students.
Other unruly girl: "Oh this fatty? Ugh, all she does is flirt with the younger guys, she such a bi-
The unruly girl is cut off as she is quickly swallowed whole and alive by Kolga, who just entered the room.
BUUURRRPPP!!!, Kolga: "I do say, I despise bratty girls, I guess she's going to be digesting into my butt fat for my students to enjoy I suppose..."
Over the next hour you try to focus on Kolga's lessons as the girl in her belly screams to be let out, before she eventually digests into Kolga's buttfat. Once she finishes digesting, Kolga slaps her ass as it jiggles in her purple leotard.
Kolga: "Delicious~ I guess I'll see you tomorrow handsome~ tutoring session is dismissed~"
With that, you go home, resuming school the next day... tutoring only happens after classes...