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
Tied down, caged, and teased for hours. This was the reality of your weekends from now on, however your mistress made it clear the cage won't be coming off on the weekdays.