A test

You look at yourself in the mirror. You look great. You are dressed in elegant black dress. Maybe it is a little too short and shows a little too much cleavage considering that today you are supposed to take Gerrow's test, but...well...Amy insisted and considering that you haven't cum for two whole weeks, you didn't want to argue with her. Besides she had a point when she told you that it would be fun to tease him a little considering what he did to you and what he wanted to do. Somehow you aren't scared of this test, you are pretty sure that Gerrow won't give you anything really hard and you really improved thanks to Amy's guidance (which means thanks to her teasing and letting you cum only when you are getting better at physics).

Immediately after you finish breakfast you hear the bell. It's Amy.

"So how is our little perfect student? You look astonishing."

"Thanks, you...also look good" you would reply in kind, but she's dressed in jean and T-shirt so it would be weird.

"I know" she realized what you are thinking about "but you are the one that takes the test, not me. But" she leans to your ear "I don't wear panties."

You blush.

"I should concentrate on a..."

"You will nail it" says Amy dismissively "we were working on it. Besides, the reward will be pretty good.."

That practically ends the discussion. Amy rarely licks your pussy, but when she does... You were already ****, now you would agree to kneel in front of her in the middle of the street for everyone to see. Thankfully she didn't demand that. You know that through these last months you became really dependent on her, but it bothers you less and less with every passing day.

Twenty minutes later you are kneeling on the floor of school's bathroom. You have ten minutes before the test, it is more than enough time to make Amy cum. You have had much practice. It is so weird that before all of this, you never thought of Amy in erotic way and now she seems to you like the most beautiful person in the world. You know that the belt locked on you played big part in that change, but you can't help feeling this way.

Anyway you eagerly dive into her pussy, but not rashly. She is already excited, but you give her few introductory licks before attacking her clit in the earnest. Amy is looking down at you with a wide smile on her face, but it doesn't take you long to turn it into an expression of ecstasy. Her mouth is wide open, her eyes are rolling inside, her hand grips your head with all strength they have. You know her body and its reaction good enough to know that it will be an intensive orgasm. And indeed she screams quite loudly and rewards you with fair amount of her squirt.

"Jesus, Emily!" said Amy "you are getting almost too good at it. I am tempted to keep you in this position forever. That was great. And it took you five minutes. Let's go. You have test to take."

You both are quickly on your feet. You want to wash your face, but Amy says:

"No. I want you to keep it."

"Gerrow will smell it!" you protest.

"Even if he does, so what? It would only make teasing him better. Of course you don't have to do it, but" her face is really close to yours "I would really like it. Who knows maybe you'll be free from your belt for a week. And maybe I would make you cum whenever you like."

Whole week free from that cage... With Amy's tongue in your pussy...You can't refuse that. Time to take that test.