Almost

Gerrow doesn't pay you any special attention, he is behaving normally. Thanks to it, you can concentrate on what he's talking about, you still need to pass his test after all. Initially Amy is keeping her word and doesn't bother you. Then apparently she gets bored and you feel slight vibrations. They are not much, but they are distracting you, you look at her and whisper:

"Come on! Stop this!"

"Oh sorry" she whispers back "I had to accidentally hit the button."

"Accidentally", yeah sure. She has four more "accidents" like this during lesson, so at the end of it, you are horny beyond belief. Then you realize something. You have volleyball training today! In theory you could just not go, but it isn't a good idea, especially that final matches are coming soon. So after a lesson you tell Amy:

"You have to unlock me!"

"Oh really?" she smiles "and why is that?"

"Because I have training today!"

"So? The belt doesn't make it impossible to jump in it!"

"But it makes it more uncomfortable! Besides somebody can see it in a dressing room!"

"Are you wearing panties so slutty that it would be visible?"

"Amy!" you blush a little.

"Okay, okay. I'll unlock you. But under one condition. You can't make yourself cum. Do we have a deal?"

"Yes" you sigh. You are horny, but...she won't even know if you do pleasure yourself, right?