She said she had never cum from oral before. You thought you could prove her wrong so she bet you that you couldn't do it, and would be locked in chastity until you made it happen. Perhaps you were too confidant in your abilities. You thought you would
After a stressful day of class, I was relieved to finally go back home, but my teacher had held me after class. She was looking for a way to cool off and before I knew it she swapped our bodies!