Professor Calisa is meeting her student Happy Heartfella for a tutoring session at her house. He's having trouble understanding the point of a ballgag. Calisa tells him he needs to experience it to understand it and straps it in his mouth nice and tight. She tells him that she's always wanted to tie up a cute boy before but her husband won't allow it. She asks Happy if she can tie him up, after all, her husband is stuck at work late and she knows Happy is interested in her. Happy agrees, or at least it sounds like he does through the gag, so Calisa pulls out some rope and ties him up! Once she's satisfied she admires her work. Unfortunately, the fun is interrupted when her husband arrives home early and catches them! Calisa tries to lie her way out of the situation but it's no use, Calisa is hogtied tightly right next to Happy as punishment. Now, they can enjoy some real Student Teacher Bonding time.