Two seems to be the magic number for you. Two classes and busted twice.
To stop you from beeing a dumb doll and masturbating all the time, that means two weeks of denial for you.
You are not allowed to cum and not allowed to touch yourself sexually, unless it's ordered.
Every day of these two weeks you have to use the rope or something else like a chain to leach you onto your desk. Gag yourself with the ball gag.
This way you have to study your shool stuff for two hours. No internet, unless needed to study, phone turned off.
After the two hours, you may plug your ass and watch 20 mimutes of your favorite porn, while slowly fucking your cunt with the dildo.
When you fail to do the study, your denial gets extended for two days and you have to sleep on the floor with a body harness, blindfold, and both holes stuffed that night.
Report on it every day.
For now, put the harness on and a plug in your ass. Both, until tomorrow morning.
Before going to sleep get down on all fours and fuck your ass for 5 minutes with the plug, while repeating "I am a dumb slut, who fails shool".
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