Not today...

I heard the professor bid Carl farewell and a moment later a door closed. The Dr's hand was on my cheek and in my hair, gently at first and then with force.

"You want a mouthful of cum, don't you, you little slut? You think I'll dismiss you once I fill your mouth and throat with cum? Seeing you between my legs will keep me hard until class, so you'd better get used to this. I've got a conference call tomorrow my little whore, and I'll need your mouth for that. The day after there's a weekly check in with my grad student and I'll fuck your throat for that too."

I squirmed on the dildo, empty and unfulfilled. I was ready to beg him to fuck me, spank me, choke me.

He stiffed in my throat and held me still as I gagged and he exploded in my throat. I could barely taste him he came so deeply.

He stroked my hair a moment but he didn't soften. I wondered if he was that turned on or he'd taken Viagra or something.

"Good girl," he whispered, wiping the sweat from my brow. "If you want a letter of recommendation from me, here's what you'll do. Totally optional of course, but I'll write you one if you do as you're told. Take that dildo home with you and bring it back tomorrow. Good girl, you're very good at sucking cock, aren't you? Take it home and think about how this makes you feel. Practice taking this dildo up that tight little pussy. I want at least one picture. I'll write my number on your tits before I let you up for class. Do that every day this week and I'll write you a glowing recommendation."

I slid down a tiny bit more on the dildo.

"Maybe tomorrow I'll tie your wrists together while I fuck your throat. Would you like that, Kady? Are you the kind of slut who loves to be tied up? I bet you are."

I was and I grew ever wetter. I let him bob my head over his cock for the better part of twenty minutes while he wondered out loud how it would feel to walk me naked on a leash through the quad, a cock gag in my throat and plug in my ass. He reached his other hand under the desk and pinched my large nipple between his strong fingers and I gasped around his cock.

"You're happiest when you're surrendering, aren't you, little whore? It's almost time for class. I can't come again so soon but I'll save her up your wet little mouth tomorrow. It's cum for dinner this week, little slut."

He pulled out of my mouth and slapped my cheeks gently with his cock, wiping my saliva over my cheeks.

He helped me off the dildo and shaking to my feet. They cramped terribly and I fell onto his lap. I tried to get to my feet but he held me there, dipping a couple fingers inside me.

"You're so wet, slut. My god. Look," he said, feeding the soaking fingers into my mouth. He pushed his other two fingers into me, brushing gently against my clit. I howled around his fingers. "Shh. It's okay, sweet slut, you can spend all night masturbating, thinking about how good it will be to have my cock in your throat tomorrow and the next day, and the day after that. For now just be still, let the blood come back to your legs, and take one of the front desks. You're going to hand back essays in that tiny skirt, and you're going to sit with your legs apart like the obedient whore you are showing your sweet little shaved snatch to anyone who looks, understand?"

I nodded, unable to do much more, impaled with his fingers in my mouth and pussy.

"Good girl. Clean my fingers, put your toy away, get your shirt back on and take your seat. Be sure and think about that offer for a recommendation, and I'll see you under my desk at four o'clock tomorrow afternoon."