It has been a little while since she gave her dear a proper... Backdoor education. She'll get the strapon nice and lubed up. Because she loves her. A few hours of pounding her into mindless drooling bliss should do just fine for upping her grades.

"Now now... Don't make that mewling sound dear. Crownguards don't get poor grades. I'm merely helping drill in your lessons so it never happens again... And you know you love my tutoring so very much, pet."