Think my brain already showed me way too much. Wont watch it myself, but it seems there is a market for these kind of video's. Maybe you could find some actors around here, some do come to mind as being fully qualified.
Apparantly the teacher loves pupils going way deep up his back end. Some might even fit completely inside that shithole.
Unfit for the job for sure, teacher should be sacked. Find himself a job in the adult movie realm.