With the Crystal Ball in full swing, and most ponies occupied, it was easy for one or two to slip away from the crowd, even if one of them was the largest earth pony to walk the planet. He said nothing as he walked along, the tuxedo hastily made for him threatening to rip from his muscles at any moment. Not that he cared, for his gaze was firmly on the mare in front of him, and her swaying rump.

Her tail was swishing back and forth, her dress hiked up a little so that with every step she winked at him, her marehood glistening as a sweet scent filled the air; he knew it well growing up with two sisters. She knew he knew too, and was teasing him with it, as at any point he could just grab her and rut her, but she was enjoying this power over him.

The corridors were mostly empty except for a few guards and staff, who regarded the mare and stallion with wariness for a moment before looking away upon the scent assailing their noses, and quickly went about their business.

The mare and stallion soon arrived at one the Crystal Castle’s guest suites, where the door was pushed gently open and they entered. As soon as it closed behind them, the stallion scooped the mare up and hugged her close to his chest, taking a deep inhale.

Fluttershy looked like a teddy bear in Big Mac’s arms, and once upon a time she would have been a whimpering mess when held like such, but she knew these arms well and found comfort in their embrace. But tonight? Tonight was something both had talked about before, and with some social lubricant, it was now happening.

“Um, put me down,” Fluttershy ordered, none of her usual ‘if you don’t mind’ or ‘if that’s okay’. It was an instruction, one that was promptly but gently followed. Nodding, the little pegasus made her way to the bedroom, where she closed the door behind her.

Mac blinked, and eased himself onto the couch, then swallowed nervously. Ever since they’d talked this over, they had been preparing. He shifted a little, as something reminded him that he was practicing even now, and most of the evening he’d spent fighting down the arousal. After a few minutes, he slipped out of his tux and pulled over a box on the floor, which he opened. “...eyup.”

Reaching in, Mac pulled out a large and wide pink leather collar, diamontes sparking in a band around it. He slipped it around his neck and heard the ‘click’ as it latched itself shut behind his head. Then, he moved from the couch to an open space and sat on his haunches, with his forehooves raised and his frogs facing up. He had perfect timing too, as just as he got into position, the door to the bedroom opened. His eyes went wide as he beheld his mare.

From neck to hoof, Fluttershy wore tightly fitting shiny black latex, with a half mask; the only parts of her not covered were her muzzle, wings, and eyes. She stepped forward and still had to look up at Mac, even in his sitting position. Reaching up, she hooked her hoof through the large ring on the collar and pulled, making him lower his head to hers, so she could look him in the eye, whilst one of her wings came around to stroke his balls; she’d have paid attention to his shaft too, if she hadn’t locked him in a very snug chastity cage over a month ago..

“Are you ready?” she asked him, not letting go and getting a nod in return. “Assume position D.”

Mac moved to the couch once more, but didn’t sit on it this time. Instead he sat in front of it and leant forward, resting his chest on the back of it. A moment later he felt something hit his rump, hissing at the stinging left behind. In the mirrored wall in front of him, he saw Fluttershy’s head whip back... Then hissed again as another sting tore into his other side.

“I don’t hear counting!” Fluttershy said as she caught him two more times.

“F-four!” He stammered out, chest heaving as the burning on his rump increased more. Every strike seemed to hurt more than the last, and his every word was mixed with a deep breath. Eventually, his body collapsed onto the couch as tears streamed down from his eyes. “..F-forty,” he whimpered out, looking up at Fluttershy through watery eyes as she moved around to stroke his cheek.

“You would have had less if you counted from the start,” she informed him, giving his snoot a kiss before pushing his head away from her. Some might see what just happened as cruel and unusual, but the mare knew different, she knew how much the pain meant to him. “Right then, position E.”

Mac grunted and hissed as he pushed himself up, turned around, and lay back on the couch, with his arms wrapped around his hind legs to keep them in the air. A shiver ran through his body and he gasped in pleasure... as the toy that Fluttershy had slipped into his ass earlier pressed on his prostate.

Fluttershy giggled as she wiggled it around, loving the noises she was bringing forth from him, even a whinny and a nicker here and there. But there was only so much she could do from here. Ever so slowly, she began to pull on the base of the toy, watching as Mac’s rump clenched around it like his body wanted it to stay inside him. After a minute or two, it popped free, being half as long as Fluttershy’s arm, but just as thick. “I can’t believe you went to the party with this in and lasted that long.”

“T-thank you, Mistress S-shy,” Mac panted out, his eyes wide and staring at the ceiling. He took a moment to regain his composure, then swallowed when he felt something else probing him. “Ah... Ah’m ready,” he informed her, then scrunched his eyes closed and bit his lip.

“O-okay,” Fluttershy said, all her brash and confidence fading a little as she took some time herself. She hooked her forehooves over his arms and slowly pushed her hips forward, looking down to the solid rubber shaft that was strapped to her around her waist, with a part already inside her marehood, and she entered the stallion. She kept going until her hips met his firm ass cheeks, where she held still for a moment. “Are... are you comfortable?”

The room was silent for a moment as both ponies thought over what was going on, then there was very quiet, “...eyup.”

Knowing that was his signal to say he was still okay with this, Fluttershy began rocking her hips, sliding back and forth gently. With a tap of her hoof on his arms he let them fall away, his legs spreading so they could look each other in the eye... but also so that Fluttershy could see the effect this was having on Mac... and boy was it! Every time she slid in, his cock, trapped in its silver prison, twitched, and every pass over that sweet spot deep inside had a small drop of pre dribble from the hole at the front..

Soon Fluttershy found a comfortable rhythm, a heavy blush on her cheeks as she gasped for breath, for the on the other end of the toy was an offshoot that was snuggly in her marehood, though not as filling as Mac, and it had just started vibrating.

The small moans she got from Mac were quickly joined by her own, as the faster she began to pump her hips the stronger the vibrations inside of her became. It only took a few more minutes for Fluttershy to suddenly push in deep, making Mac whinniy as she squealed loudly, her wings fluttering as she reached the heat of passion.

Mac looked down his body with a smile, as seeing his mare happy made him such, but it seemed she wasn't done, and he shivered as he felt her hoof rubbing at his now tender balls..

"You didn't finish?"

"Enope," Mac said, shrugging. “Ain’t about me, not when this is on.” He stroked at the collar around his neck, blinking as Fluttershy clipped a leash to it. With the other end in her mouth she began to move away, and once the slack was gone Mac was forced to follow her. “Shy?”

The mare glanced over her shoulder at him, then slowly slid open the balcony door, the cool air whipping into the room. “Forehooves on the railing, please.” She waited until he’d done so, then used a couple of bits of rope to lightly tie them there, before lifting his tail. “We can’t leave this empty for long.” Once more the toy was slipped inside of him, filling his ass, Fluttershy giggling at the spurt of cum that came from his cage. “Good colt.”

Mac went to ask what exactly she had planned, but it was answered soon enough. Attached to a hoof was a small orb, which she placed against the tube of his cage, and a moment later it buzzed to life, sending powerful vibrations through his impeded stallionhood and heavy balls. As if that wasn’t enough, the rubber plug in his ass was moved around, pushed in deeper then being pulled back.

Given the risque of their activity, how aroused he already was, and the stimulation forced upon him, it didn’t take long for Mac to through his head back with a loud whinny and stamp a hoof.

Under him, Fluttershy gained an evil smile, knowing what was about to happen, so she pressed the vibrator down even harder, watching as his whole belly quivered. A moment later his release came, shooting from the hole in a thick goopy liquid... and right over the edge of the balcony. After the initial shots, she put her mouth in the path and opened wide, tongue hanging out, to be reward with the last of her stallion’s orgasm filling her mouth and then some, which eagerly swallowed down.

Once Mac’s cock was a twitching, sticky mess, Fluttershy finally relented and turned the vibrator off, setting it to the side, then untying Mac from the railings. The stallion fell to his haunches, a smile of pure bliss on his face, and he pulled the mare into a passionate kiss. “T-that was amazing.”

With a giggle, the mare reached up and unlatched the collar. “In that case... let’s keep it on for another two months. Now come on, time to get cleaned up.”

As she walked off towards the bathroom, Mac looked down at his still cage cock, the silver now bathed in the fluid of his release. “Two months? Nope!” With that, he trotted after her, ready to bargain for a shorter sentence.

In the gardens below, heaving a sigh, Lightning Streak sighed to himself. No matter what he tried, the mares of the Crystal Empire showed no interest in him. That was the norm though, so he wasn’t that shocked by it. He decided to call it a night, so turned and headed for the exit when he stopped and blinked. He could feel moisture in the air, but couldn’t see any clouds.

A moment later it arrived, landing on a large part of his right shoulder. He sniffed and frowned, for the fluid didn’t smell like water. Curiously, he lifted a hoof and found it to be sticky. It didn’t seem to be doing his body any harm, so he took a tentative lick and immediately wished he hadn’t. “Ewww, gross!” he said as he looked up, wondering what kind of depraved pony got off on doing something like this.

Instead of making his way through the Crystal Palace, he immediately took wing for his hotel room, wanting nothing more than a warm shower and then his bed. What a way to end the night!

Author's Note

This came about from a discussuion about this cropped image, where it was decided that's his face if he's being pegged. At first it was going to be Starry Skies pegging Descent, but into turned into Fluttershy doing Mac instead.