You're broken in!

Mistress Kathy's whip cracks in the air, making a sharp, snapping sound. Kathy herself moves toward you, her riding boots cracking sharply against the dungeon floor. You hold still, bracing like a good pony, as Kathy puts her foot in the stirrup, seating herself in the saddle, straddling your back.

Taking firm hold on the reins she pulls on them hard and forcing the bit deep into your mouth, pulling your lips wide open painfully. A sudden crack of the whip on your ass causes you to buck in surprise and pain, shaking Kathy slightly in the saddle. "Bad pony.." Jamming her spurs in your sides and pulling on the reins even fiercer. "..I will break you in!" The whip cracks on your ass again yet this time her firm grip on the reins and her digging spurs forces you to hold still.

Mistress Anna is suddenly in front of you, her camera getting a close up of your face as Kathy laughs sadistically. "Better pony but we've get plenty of training to do!" Cracking her whip in the air and snapping the reins she forces you to a walk, urging you to walk faster and faster. The problem is that moving faster causes the humbler to pull ever tightly on your balls, stretching them with every step. Every time you slow down the whip is there to crack against your ass and her spurs dig into your sides.

Kathy spends the better part of an hour, putting you through your paces, breaking you in as her personal pony. Standing in the center of the room she cracks the whip, forcing you into different walks. Seated in the saddle she pulls on the reins forcing you into different methods of walks, different paces. Before long you find yourself enjoying the humiliation and even pleased with every accolade awarded to you by your rider, Kathy. You even find yourself making the noises of a horse much to Kathy's great delight.

You're dripping with sweat, muscles trembling with exhaustion as Kathy pulls you to a halt. Stroking your head gently, Kathy looks gently into your eyes, leaning in and kissing you softly on the nose. "Such a good pony you are.." She rises, moving out of your field of view for a moment, her boots clicking sharply on the floor. You feel her gloved hands on your ass cheeks, pulling them wide and pulling the tail out of your ass leaving it wide and gaping. The noise of phlegm rings out seconds before a cold, wet fluid impacts with your asshole.

Seconds later something hard plunges deep into your ass, Kathy's warm form on top of you forcing your exhausted body to the floor. "..now to break you in!" Your balls are pounded and bruised as Kathy begins slamming you into the floor with a massive strap-on filling you up to the point of nearly bursting. With every thrust your ass feels like splitting and your balls are slammed with full ****. All the while Anna is close by, taping it all, recording your debasement for the horny masses online.

Despite it all or perhaps because of it you cum again and again, a puddle of cum pouring out from under you as your cock grinds against the dungeon floor. Kathy pounds you unceasingly, showing no mercy as you lose all control of your bodily functions, even pissing yourself, mixing your cum with your own piss.

The **** eventually comes to an end, leaving you a quivering puddle of nerves and muscles on the floor, weak pants the only noise you can muster. "Such a good pony you are, yes you are!" Kathy poses, boot on your back, cracking her whip in the air as Anna cries out. "Aaand cut!"

Just like that, the spell is broken. "Good work ****, you're a natural!" Kathy gushes over you as she starts to free you from the restraints. Anna chimes in, concurring with the statement. "Yep! This is seriously hot boy, we'll edit it and have it online in a jiffy." Coming free of the restraints you're helped to your feet by Kathy, almost falling over if not for her support. "Yep, this'll be good ****. Let's get you cleaned up."

About an hour later you're showered and clothed, stepping into your car to head home with Anna and Kathy waving you goodbye from the yard. "Don't forget our pop quiz ****!" Kathy's voice echoes after you. Following her call is Anna. "Check online tonight!"

You speed away, eager for your pop quiz and nervous to see the shoots online, wondering to yourself how this'll impact your life.