You make him ride you hard

A couple minutes later, you're lying back on the bed with a satisfied smirk on your face, watching with satisfaction as your new fucktoy bounces his tight, clenching butt up and down your aching shaft. You ordered him to use his hole to make you cum as a final show of submission, and he's putting his all into it now, sitting across your taller body, facing away so you can watch his toned cheeks wriggle and clench as he rides you. He's exhausted after the hard fucking you already gave him, as well as the confession you had to wrench out of him, but he's giving it his all anyway. With any other boy you'd be absolutely delighted at his performance and total willingness to please you, but you both know that isn't what he needs.

"Faster, slut. Are you even trying right now?" You snarl, reaching over your body to smack him hard across the butt. He lets out a hoarse moan, his legs trembling. When you spank him twice more you feel his tender hole clench even tighter round your throbbing cock. You watch his hips wriggle and buck as he sprays another pathetic load across your sheets, cum dribbling from his soft cock as your own slams past his prostate. "Did I say you could cum?" You growl.

"No Mistress." He whimpers, still trying his hardest to slam himself down along your shaft, burying your thick cock to the hilt in his warm, clenching guts. With another trembling gasp, he spurts even more watery seed across your bed.

"How dare you?" You sneer, managing to keep your voice cold and contemptuous even as your aching shaft is milked and squeezed by his tender butt, sending ripples of pleasure into your belly. Your pussy clenches around empty air, dripping warm juices onto your thighs. "This isn't about your pleasure, you think I give a shit about that? It's about you getting me off. That's the only use you might have to me, fuck knows you're worthless for anything else, and you're still fucking it up. You haven't even managed to make me cum yet and already you're spraying twice from that pathetic worm between your legs and messing up my fucking bed. I'll make you lick up ever drop once we're done here."

"Sorry Mistress." He whimpers, his legs shaking so much he can't even work himself back off your pelvis again, leaving your cock buried to the hilt in his belly. It's pleasurable enough just feeling your shaft tightly clenched inside his warm, sticky guts, but he can do better.

"You'll be punished for this." You snap, drawing another needy groan from the masochistic boy. "Now use those muscles for something worthwhile for once. Squeeze your asshole around my cock, tightly." He obeys, his cheeks clenching and you bite your lip as you feel his hot muscles clench around your thick shaft. "Good, finally." You moan. "Perhaps fucking you might even feel better than jerking off someday, but you've still got a lot of work to do. Move it, you lazy little shit, up and down. And if I still haven't cum in the next five minutes I'll make you suffer even more for it!"

You smirk to yourself as the boy goes back to frantically bouncing on your shaft, panting hard as he forces the effort out of his tired body and shuddering legs. This is just such a rush. And not just because you're finally, finally getting to drain every drop of cum in your heavy, aching balls into a boy's tender butt. Giving your sadistic impulses total free rein for once is a joy like no other. You know you can just say whatever you want and do whatever you want to James and he'll keep coming back for more. In fact, it's exactly what he needs, so abusing him like this doesn't even prickle your conscience. You can be the cruel and demanding Mistress you've always dreamt of being, and the fact that your willing, whimpering fucktoy is the same arrogant little shit who pissed you off so much just makes it all even better.

You feel your balls tighten and throb as James continues bouncing. As heat floods up your stiff shaft, you reach up and grab the boy by the hips, slamming him down into your pelvis and holding him there to make sure every drop of cum ends up deep inside his belly. He wriggles and moans as you stuff him full again, his already bloated belly straining even more. Your pulsing shaft pumps another thick, massive load inside him, and you feel cum dribbling down your cock as you lie there with him still settled firmly on top of you.

Slumping back into your bed, you bask for a few blissful moments in the warmth and aching satisfaction. Your cock finally starts to soften inside the boy's warm butt, wilting back to its normal size. Your new fucktoy has drained you dry at last, after so many months of need. Cum dribbles out of his gaping hole, warm and sticky against the skin of your pelvis. He can lick that off soon enough along with cleaning your bed of his pathetic little loads as well. Maybe watching him service you with his tongue might just give your soft cock a second wind and you can fuck his throat again, **** him out with your shaft.

You ease him up off your belly, your soft cock popping free of his twitching, gaping butt. He's limp and helpless in your grip as you pull him to your side, so you decide to give him a couple minutes to rest before you insist on that tongue cleaning. Letting him lie beside you on the bed, moaning hoarsely, you wrap a possessive arm around his twitching body, your hand gently cupping his hot, bruised butt. In the back of your mind, you do know how dangerous this is. He's still your student, and the way you're ruthlessly satisfying all your worst urges on him could end you both in a terrible spot if it ever got out.

The fact is though, this all just feels way too good for you to ever give it up. The thought of doing whatever you want to this handsome boy, with no limits beyond sparing him any injury of course, is just so intoxicating that any risks seem small by comparison. This is long-held dream and fantasy of yours you finally have a chance to fulfil. You give his butt a little squeeze that makes him moan in pain when your fingers sink into bruised, tender flesh. You'll be careful, but you know you just can't stop this now. It's way too late for that.