She barely knows what the class is about. The teacher has been up front, and damn the man has some energy, and all she can do is fantasize about him. With a little grin to herself she decides to see what he'll do.
Sitting in the back has the advantage that he's the only one that can see her. Throughout the class she starts teasing. Legs opened under the desk so he can see up her skirt. A flash of her bra here, a wink and blown kiss there. He takes note of it without stopping his flow. She notices a bulge in his pants. That just eggs her on, becoming more bold. A flash of breast and nipple, a nipple pinch and sex face, a grin as she pulls her panties to the side, petting her wetness for him.
After lunch he turns the tables. She's petting herself under the table, when he calls her out, asking a question about his lecture that she can't answer, and also drawing everyone's attention to her. With a blush she quickly hides herself from the class before they see, and thinksfor a second. He calls her to the bored to write out the answer, writing it at the top of the board where she'll have to stand on her tip toes to write. In heels, a feat that would show off her ass. With a blush she tries to answer. In front of the class he tells her to see him after class to discuss her inattentive behavior, keeping his face blank.
When the rest of the students have left, he hands her work to do and sits her in the very front of the class. He goes back to his desk and works on some of his paper work. The mans eyes though! They're filled with a primal energy everytime their eyes meet. Is he always like this? He gets up and walks out of the class, leaving her alone for a while. Distracted by the monotonous work and her own imagination, when he steps out she takes the chance to try and do something with the tension she has built herself up with. As she pets herself, pinching her nipples through her bra and squeezing her breast, her eyes close slightly.
About that time, he walks back in with a book bag over his shoulder and closes the door. He also locks it. He says the rest of the school has left by know. He holds her gaze as he talks to her about how naughty she was being in class. Asking her why she did it, she decides to go all or nothing and tell him how cute she thinks He is. With a hidden expression, he stares at her for a second then asks her to stand up and walk to the desk. Standing at the desk, he tells her to stand up straight and look forward at the board as he walks around. With a little blush, she feels his eyes on every inch of her. Stepping in behind her, he presses against, his breath in her ear as he tells her how bad She was, and that the two of them will just have to address this. She hears him move a chair, and turns to see him sitting a chair down behind her, as he tells her that she was a bad girl for looking before he said, and to walk over to him. He reaches to her shirt, and in a rough but pointed move unbuttons it, pulling her breast free. Taking them, he squeezes roughly, catching the nipples and pinching them hard, pulling on them as she tries to maintain her stance, moaning. His hand comes down across them in turn, slapping them and turning them red and stinging, making her yelp. He sits down, pulling her down and bending her over his knee, giving her a sound spanking. His hands are rough, not like an expected academic, and strong. Each slap brings a good sting, and she can feel her panties growing wet. She also feels his erection pressed against her, needful.
He tells her with a spank to each word that she is going to make up for keeping him turned on for so long. In return, he's going to do the same. When he's done spanking her he takes her firmly and guides her back to the desk. Going to his bag, he comes back with a battery operated magic wand. Not as strong as the wall, but still high. He set's it up so it's right against her clit and turns it on low. A moan escapes her mouth from the start. He makes her write again, this time giving a nipple a twist every time she tries to pause. She quickly feels herself on the edge. The evil man forces her through 4 orgasms, making a total mess of her panties and the chair!
As soon as she comes down from the last, he pulls her panties to the side, stroking her wetness, bottom to top, making her moan again. He tells her if she's a good girl detention will end well for her. When she nods, he gets up, and pushes her to her knees as he free's himself. She uses her hands and mouth, making him moan for her this time. He stops her with a hand in her hair. This time when she stands up, he pulls her shirt off, and panties off. Walking her to the desk, he sits her on the desk, wrapping his arms around her as her legs wrap around him, and enters her.
She moans as he presses in, quickly setting a rhythm that works up to fast, long strokes. He kisses her and an electric spark flies as she moans into his mouth. Breaking rhythm, he pulls her down and bends her over the desk, taking her from behind, hand in her hair and on her hip. As he sets a hard and deep pace, she grabs her breast, squeezing and playing. She feels his hand in her hair release, and his finger goes to her ass, circling it, teasing it, and finally working it's way in. Before long he presses her down onto his desk, telling her to reach back and finger her own ass, his hand reaching around when she does to take her throat. On top of all the stimulation, this drives her over the edge, clenching around him as she moans and yells, cumming hard.
Breaking away, he tells her she will have to be quieter in the future. Taking a ruler out, he gives her another spanking with the wooden ruler, making her calmly promise to be quiet so the two of them don't get caught. Taking an apple shaped ball gag out of his bag, he puts it in, kneeling down behind her and pressing his face to her wetness, he devours her. She squeezes her breast and fingers her ass as he tongues and fingers her to another bucking orgasm, his arms catching her at the last second, holding her up. Pulling her down into his lap, he lets her ride him this time, his legs setting the pace under them, his arms guiding her and holding her tight. He squeezes her breast tight, she can almost feel the finger marks being left, Bringing each to his mouth he sucks on them, tongue swirling around the aureola and nipple, teeth grazing and bitting until she's moaning through the gag. When he hooks another finger into her ass, shr feels herself start to slip again. One finger in her ass, his other hand takes her by the throat as he makes her look him in the eyes as she bucks and clenches, cumming even harder than before on him, eyes trying to close and roll until he shakes her lightly by the throat, bringing her back.
Getting up, he guides her to his throbbing hardness as she takes her turn to finish him, catching every drop. He takes out a pen, taking her forearm and writes/scratches a message into it with his phone number, house address, and telling her the two of them have to have some private tutoring to get back on track with class. He gives her another good kiss and play spank on the butt before the two of them get dressed.
Source: reddit.com/r/sexystories/comments/3r386u/detention_fm