I wish I could say I am shocked by this terrible report card but your teacher has been dropping hints that you were having trouble focusing in class. Lucky for you, Mom has just the thing to get a young man back on track and laser focused on his goals. You will be wearing this adorable little accessory from now until I see a big improvement in your grades. I bet a smart boy like you can guess what it is for just by looking at the shape. The chastity device will come off when your grades come up but until then, I am going to make sure every minute in that cock cage is as frustrating as possible. Porn randomly playing on the family TV, slutty little outfits around the house for me, or maybe no clothes at all. If you can back to a B average though, then I promise you will get a special reward when I unlock your cock.