I've noticed how well you've been paying attention to my lectures in class...and how much you've been staring at my ass. I call you into my office to thank you for always being my star pupil. You thank me back by getting cum all over my face and breasts ;)
This could be the worlds luckiest student.
Some nice dildo blowjob, a little anal with fingers, then the "finish"
This student needs to keep up his grades to get what was offered if he did.