Bad Ideas explained: http://www.furaffinity.net/journal/321008/ Includes index.

Riding a Centaur

Storytime!

The centaur stallion was lead, not exactly willingly, by the several centaur mares surrounding him to the gelding post area. A bipedal female with them quickly secured the stallion's legs in place. A few of the mare worked the ratcheting pulleys and soon heavy chains attached to his leg cuffs pulled his legs out and left him looking somewhat like a newborn colt not sure on his hooves. To the stallion's credit he was fairly calm, though it wouldn't do any good to struggle now anyway.

The "Gelding Post" was not like a Whipping Post. For one thing, it was shorter and for another it never had anyone bound to it by the hands or arms. The stallion's balls rested against the backside of the post. In a moment they were also trapped by a short length of cord that tied the stallion's scrotum to the post. This post was a squarish affair with two holes in it, through which ropes had been passed. These ropes went to a thick plank. The plank was positioned and ropes pulled just taut. This left the stallion's balls trapped between the post and the plank. The arrangement was a vice, with the cord keeping the objects to be crushed in it from having an avenue of escape.

The ropes of the vice ran forward under the doomed centaur stud and to a big wooden disk a ways in front of him. This disk was on a ratcheted crank arrangement. Each time the crank advanced there was a loud *CLICK!* of the ratchet and the ropes would be twisted together. Slowly they would pull very taut and get tighter and tighter. The disk wouldn't give because of the ratchet. The ropes, being heavy and well-inspected, would not give. Nor would the plank give. That left only one thing... two things... that would give.

The crank turned easily at first as the ropes weren't yet twisted together and weren't pulling very hard. The stallion seemed to almost enjoy it then. Maybe he did. What he was thinking, if he was thinking, wouldn't be known as he'd been ball-gagged. His arms had been tied behind his back, at the wrists. As he was starting to struggle, one of the mares said something to the bipedal female, who grinned at the comment.

In a moment the biped was astride the stud-to-not-be and shimmied up close to his hands. It couldn't be seen now if he was bare-handed, or wearing something such as some odd "toy" but clearly his struggling was providing her some pleasure. As the crank was turned more, there was more struggling with every *CLICK!* as the jaws of the vice pulled tighter, paining the stallion more. As he struggled more in pain, his rider felt all the more pleasure. It would end, eventually, when the vice closed and the balls popped, but for now she was enjoying the ride.

--

The image wouldn't have to be exactly fitting to the story. There's no great need to show the chains from the legs as chains, or show them going to anything fancier than anchored eye-bolts cemented into the ground. I hopes it's clear that the "vice" is set up to not allow the plank to twist - just to get pulled.

Variations:
Is the stallion blindfolded?
Or can see his geldress/torturer?
Or is he set up backwards to the story and the vice operator is behind him?
Is he blinkered if not blindfolded?
What species is the bipedal female?
Is she saying anything? To her ride? To her ride's geldress?
How many mares are in the picture?
Just one to work the crank?
Many, taking turns at it?
Or are most just audience or witnesses?
Are any.. playing.. at the sight of his de-studding?
Are there any other stallions about?
Are they turned on? Or are they next? Both?