Physical Education

Where hadn't you been yet, you wondered. It was a strange feeling walking halls of the school with no need to attend class. Since your grades were now assured to be B's at a minimum, you technically never needed to study again. You figured you might keep up with your favourite subjects. Being able to pursue only what you found interesting without a sword hanging over your head was so much more fun and relaxing. Still you needed to earn that privilege, and that meant being the teachers' "sexual relief officer", as the principal had announced to the school that morning.

Gym. That's one place you hadn't been yet. Maybe you'd been avoiding it on purpose. The rumours surrounding Ms Slipknot and what she liked to do to **** young men were too plentiful to simply dismiss. Ropes, gags, chains, you'd heard it all. But as long as she was a member of staff it was your job to give her what she wanted. So you went off to find her.

She was finishing up with a class when you arrived. The students had just gone off to hit the showers. When Ms Slipknot saw you arrive she looked like a cat that had just caught its first mouse. She led you away from the gym hall and took you into one of the gym equipment storage rooms. You noticed it was the second room - the one no student had ever seen the inside of. As soon as you got inside you realised why it was a secret. Lining the walls were rows upon rows of BDSM gear and equipment. Shiny leather outfits, whips, paddles, ball gags, you name it.

"This is my home away from home," she said. "We're going to be having some fun together..."

You steeled yourself for what was about to happen. You remembered what the principal had told you.

"Just nothing harmful, okay? Otherwise Mrs North will hear about it."

For a moment Ms Slipknot appeared truly crestfallen, but she quickly recovered her usual cocky composure.

"I don't need to hurt you to get what I want." She was browsing her tools of the trade hanging on the walls. "Like they say, there's more than one way to skin a cat... This, for example."

She unhooked a coiled rope from the wall.

"Now take off your clothes."

You did as she asked. She circled you like a wolf stalking its prey.

"Very nice... Could use a little extra toning here and there but not bad. Really, not bad. Let me help you ... accentuate your best features."

You unfurled the rope and pressed it against your skin. It was rough and frayed from use. She corded it around your body; once around the chest, the hips, then up around the arms, and down around the legs. Your arms and legs were bound behind you, and your butt and breasts were framed by segments of rope. You could move your head, hands and feet freely, but that was about it. Despite your confinement you gave her a smirk.

"You like to play rough, huh?" you asked.

She didn't respond. Instead, she undressed herself in front of you, exposing her immaculate physique, sculpted by years of rigorous diet and training. She had a six-pack, and then some.

She put a hand to your chin and asked, "You know what I like? I like to take weak little boys like you and show them what a real woman is. I used to watch you in class, dreaming of what I could teach you. But I don't have to dream anymore. We've got all year to get to know each other and I'm going to make sure you take in everything I have to offer."

Then she reached down to her groin and cupped her balls. They were as big as oranges, and if they were fruit, they were hanging off a veritable tree trunk.

"You've got big muscles everywhere. I like it," you said.

She paused, then knitted her brows.

"I'll show you what my body can really do." Was she blushing?

She strode forward and stuck the head of her cock in front of your face.

"Suck it."

"With pleasure," you purred, sticking out your tongue.

You weren't going to let this wannabe dominatrix get the better of you. You lapped at the head, sending obvious shivers up her spine. It was very musky, but strong and clean, just like the rest of her. You could tease her cock all day, you figured.

"T-That's enough foreplay!" she said. "Now it's time for the main course... I'd ask you to bend over but you seem a little tied up at the moment. Don't worry, I can accommodate you. I'll lift you up like so ... and slide underneath. There we go, now I'll just slide you down onto my dick... Oh my god, it's even better than I imagined."

She was bouncing you up and down on her crotch like a toy. Her taut, muscled arms were doing the bulk of the work. Your legs were still bound so this position was less "cowgirl" and more "damsel in distress". You couldn't deny the sinful fullness her dick provided as it stuffed you over and over again.

After a while her pace started to slow. She had been lifting most of your body weight and the strain was starting to show.

"W-What's the m-matter?" you teased. "Not s-strong enough for a w-weak little boy like me?"

She grit her teeth and increased her speed but soon she was slowing down again. Her face was bright red. You offered some advice.

"Untie my legs and I can squat over you... You don't have to do all the work. Let me work for you."

She brought you back down on her dick with a satisfying slap of your ass cheeks against her thighs, and she pondered.

"Well, I - I guess that's ok. You're my toy, I might as well make you work to please me."

"That's the spirit," you breathed as she uncoiled the rope from around your lower body.

Finally you could move your legs again. You did as you promised and straddled her waist, easing yourself back onto her. She took a deep breath and exhaled.

"That's it," you said. "Relax. Let me do the work."

Now the pace and angle was up to you. You made sure her dick was hitting you in all the right spots. One moment you paused at the top, the other you slammed down onto her. She curled her toes and bit her lip.

"Go faster. Don't keep stopping," she said.

"What's the magic word, teach?"

She glared at you.

"You're my toy!" she said. "You do what I want."

"I'm doing what you want. You got too weak to lift my ass so now I'm pounding it for you. Don't you remember? Your big, strong arms gave out on you. So if you want me to slow down... Or speed up! You're going to have to ask nicely."

"N-No," she whimpered. "This isn't right. I'm supposed to make you my bitch. I'm the teacher. I'm the one in charge."

You kept slamming your hole onto her thick rod. Your ass and thighs burned from the strain but you knew you could hold out.

"No, Ms Slipknot. Your dick may be inside me, but I'm the one who's fucking you."

In one final motion you lifted yourself up till the tip of her cock had almost slipped out, and then dropped your full weight back down. She shuddered from the impact and unloaded into your ass, triggering your own orgasm. Her balls pumped their cum into you as she quivered hot and red. Your load shot out through the air and streaked her face, tits and hair with your cum. A large amount landed right in her mouth, and as the two of you gasped for breath she was **** to drink it down.

"That was fun..." you sighed. "Let's play again sometime..."