Your ass gets pounded

Ms Jo takes a step back and puts her hands on her hips. She flips her long, silky, black hair behind her head and thrusts out her massive chest. She definitely didn't just change her body. The short, scabby little girl you used to know was awkward as hell, but every move Ms Jo makes oozes sex. Right now you feel like all that sex appeal is directed right at you.

"So," says the blazing hot teacher, "do you still want to have sex with me?"

"What?" you ask. "Are... are you serious?"

She winks at you.

"Yes! God yes! Please, Ms Jo, please! I'll do anything!"

She shrugs her shoulders like she barely even cares. "Alright. Take off the rest of your clothes."

You tear off your shirt frantically. You don't notice until you're completely naked that she isn't undressing. Then the bell rings. Two dozen students come in and sit at their desks while you stand there naked. You're frozen stiff, but they're just chatting and getting out their books like this is all normal.

When the bell rings again to start the class, Ms Jo says, "Okay everyone, let's get this sex-ed class started. Last week we talked about anal sex, but that's not just for a man inserting his penis into a woman's anus. Men can receive anal sex, too. Does anyone know what that's called?"

Stephanie, the star of many of your jerk off fantasies, raises her hand. "Pegging?"

"That's correct! I have an assistant today to help me demonstrate." Ms Jo opens a drawer and pulls out a strap-on dildo. Without removing any of her clothes, she puts on the belt. Then she pulls out a little bottle. "As we discussed last week, make sure to use plenty of lubricant." She puts a hefty amount of the clear liquid onto the dildo, then looks back at you and says, "Go ahead and get in position. You know the spot."

You hesitate for just a moment, and Ms Jo's eyes narrow into a threatening glare. You remember that she could just make you comply like she did on the bus, or she could do something much worse to you. Completely devoid of power, you bend back over the desk and hold the edges tightly.

Ms Jo puts her hands on your naked hips, and for a moment you're in heaven. You've never been this intimate with a woman before, that terrible handjob from Stacy was the only time a girl has ever touched you below the waist. Now Ms Jo's hands are sliding around to caress your buttocks, and it's amazing. Then she pulls your cheeks apart and you feel something pushing lightly against your anus. Her hands return to your hips and grip tightly.

You groan as the dildo slowly pushes into your asshole. You forget to breathe as it strokes in and out, then gasp when you run out of air.

"Do you like that?" asks Ms Jo.

"Um... I don't know?"

"Well then, we'd better keep going so you can find out!"

She picks up the pace, pounding in and out of your ass. You're totally at her mercy, the strength that lifted that huge paddle is now holding you firmly in place as she rams into your ass. Soon you have to admit (silently, because you don't have the energy to speak), that you do like it. It's a weird sensation, and the weirdness doesn't fade as the minutes go by, but it feels really good.

You cum with a scream. You turn your head and see the entire class taking notes. You turn back towards the blackboard because them staring at you is just too weird. You let out another moan.

"See class?" says Ms Jo. "This is a very effective way to bring your partner pleasure. Let's see if we can make him cum again."

She keeps thrusting into your ass. It takes a lot longer this time. You're beginning to get sore, but it still feels good through the pain. You cum a second time, crying as you scream out your pleasure.

Ms Jo pulls out of you. "Now, who would like to try? Stephanie! Okay, you're very eager today, come on up."

Stephanie is gorgeous, but you're too exhausted to pull your head off the desk and look at her. You hear some noise behind you as Ms Jo helps her put on the dildo, and then you feel it go back into your ass. In a way you feel good about the fact that you're having sex with the hottest girl in school, but this is very far from the fantasies you've had about her. After a few minutes she starts spanking you and saying something as she rides your ass, but you're too worn out to understand her words.

It takes a long time, but she gets you to your orgasm and pulls out just in time for the bell. As the students leave the classroom, Ms Jo lifts your chin up off her desk and looks you in the eyes.

"That was only third period. There are several more periods of sex-ed class today, my little assistant. We have a lot more demonstrations to do!"