Yes

The beginning is quite typical. You walk into the class you say "good morning sir" then you get naked, leaving only heels on (for some reason he likes when you keep them on your feet), then you kneel and as soon as his cock is near your face you start to suck it while pleasuring yourself with one hand and keeping the other behind your back. It's unbelievable how easy all of it is coming to you. Your gag reflex is almost entirely gone and after few tries you can take all of his cock down your throat. This is almost a routine, the only thing that makes it hard it's the fact that you are wet and you need to cum! You recognize his reactions and you know that now will come the moment when he grabs your head and starts to fuck your face. But it doesn't happen this time.

"Stand up" he orders "and bend over the desk. You can take the heels off."

So it's finally happening. You knew that it would come to this sooner or later, but, the fact that you have to give him access to another part of your body is still upsetting. Well, at least you don't have to wear these heels for the moment, always look on the bright side of life, right? You walk to desk and grab it while closing your eyes, awaiting the inevitable. You feel his touch on your ass and you grit your teeth, any moment now...

He enters you with one hard thrust. You wince, because it hurts a little, but only a little, because, your pussy was already wet from all the stimulation it received earlier.

"You know Emily" he doesn't stop fucking you, how the hell can he even talk now, all you can do is moan "I always knew that you'll end like this. Bend over my desk with your ass high in the air. I admit, you were careful, that's the only reason why it didn't happen earlier" fuck! He's so deep inside you, you can't give him the satisfaction of making you cum "but" he continues "your arrogance finally prevailed. Because you are not as smart as you think, I told you that you are very smart, because I knew that it will make you more eager to suck my dick, but...in fact" he fucks you even faster now, you can't stop yourself from moaning, you can't give in to him, you have to outlast him "you are pretty dumb, you only succeeded so far, because you are arrogant to the point of stupidity. But your days of triumph ended the minute you tried to outplay me, in fact I'll defeat you again, because you'll cum now and I'll fuck you through this orgasm."

No way! Not after what he just said. But...but it just feels so good, his dick is penetrating you so deep!

"This is where you were always destined to be Emily, bend over, being fucked by man more smarter than you, you never really stood a chance."

He grabs your hair, it hurts but it also forces you deeper on his dick and that's enough, you lose control of your body, your pussy is tightening around his cock, you mouth unsuccessfully tries to suppress moans of pleasure, your hands grab desk with all their strength. And he doesn't stop, he's still fucking you roughly. You are eyes turn inwards, your tongue is lolling out of your mouth. You are young girl whose playing volleyball, he is middle-age physics teacher, how can he have more stamina than you? Yet you are the one whose panting while his cock is pistoning in and out of your well-fucked pussy.

"Oh, so, good, Emily, it won't be long" he says, it seems that he is finally out of breath.

And, indeed, few more pushes and he explodes inside you, filling you with his cum. At the same time you come screaming for a second time, it's like whole body was having an orgasm, the pleasure is immense. You both are stuck in that position for some time, then he finally gets his clothes back on. You need few more moments to catch your breath, you look at him and see a triumph in his eyes.

"This is only the beginning. You'll be more and more addicted to it with each passing day. But I want to hear what do you have to say. Be honest, I promise I won't punish you."

You didn't lose, you tell yourself, you just lost control for a brief moment, but that doesn't matter in the long run.

"You want honesty? Very good" you spat "there is little more than a month left. And after this time for me it would be only a bad memory. But for you" you look straight into his eyes "it would be the best thing that ever happened to you, peak of your life. You'll miss this time for the rest of your life."

"I'm glad that you don't give up" he laughs "it will only make it more fun, when you finally break. But there is a truth in what you said. Indeed your pussy is great and fucking it is an exquisite experience. I promise you that for remaining time of our deal I'll do it often and hard. And as for the rest, just one thing, think how quickly I made you into a skilled cocksucker, I bet that now, you are getting wet when you think about doing it. What else I'll make you crave? Think about it."

You keep the brave facade, but inside you shudder. From fear or excitement? You are not sure.