Author's Note

This chapter contains foalcon, dirty thoughts (anal hoofing, vaginal), accidental urethral enema, bladder and ball filling, bladder bulge, ball inflation.

Heating Your Jets (foalcon, urethral)

Ship Shape sat alone in the hotel hot tub, enjoying the feeling of the water jet on his back. Having earned his cutie mark just last week, his parents had taken him to the Equestrian Naval Museum to see some of the big ships he had earned his mark for. One of the big advantages of having a cutie mark is not requiring adult supervision at the hotel pool, something he was currently taking advantage of.

He had been a little less excited to be left on his own when the mare with the big ass and short tail had left five or so minutes ago, but now his horny mind was free to fantasize about exactly what he wanted to do with her stretchy looking ponut and the thick lips just beneath it.

As he imagined his hoof parting the wrinkles of her tailhole and his dick slamming home in her pussy, his sheath began to stir under the roiling water. Reaching between his legs, he gently ran a hoof over his grape sized balls, imagining the mare calling his name as he shoved his hoof deep in her clenching rectum.

As his member reached full mast, the tip of his rod caught the current of water jetting out of a nearby nozzle.

His fantasy interrupted by the peculiar sensation, his eyes shot open, looking down to see his cock shaking in the buffeting water. Taking a moment to admire his rod, (longest in the locker room, though embarrassingly thin,) his eyes turned to the nearby nozzle.

At almost an inch and a half wide, it was just big enough.

Giggling as he mentally redefined what a warm and wet hole was, the mare from earlier completely forgotten, he got up, rock-hard-dick slapping against his belly as he waded to the side of the hot tub. Propping his forehooves against the rim of the tub, his eyes almost rolled back at the sensation of the water jet wiggling his colt parts around. Focusing, his mind set on the goal, he gripped his trembling erection and lined it up with the hole.

Rocking his hips forward, he entered nirvana.

The feeling of the hot water rushing past his throbbing member and firmly massaging his balls was more than he could have asked for, outclassing his hooves by orders of magnitude. The high pressure water slid down his length in a constant rumble, feeling to his overactive imagination like the sensation of shoving continuously deeper into a mare's throbbing hole without needing to pull out. His thoughts went back to the mare from earlier, imagining her eyes rolling back as his infinitely long dick plumbed the depths of her ass, foot after foot sliding past that tight ring.

After only a few seconds, the indescribable continuous stroking sensation of the water jet proved too much for the young colt, his first orgasm of the night teetering on the brink.

He flared.

While his normal width fit in the tube with space to spare, his wide flare was a different story, sealing up against the sides of the tube almost perfectly. With the path blocked, the flow of water sliding past his colthhood stopped.

Ship Shape's eyes flew open as the high-pressure water, with nowhere else to go, rushed into his urethra. Squeezing through his not-fully-developed prostate, it took the path up, hot water beginning to pour into his bladder. The sensation of the hot water forcing itself the wrong way through his prostate proved the tipping point, his orgasm ripping though him like thunder.

His poor prostate, doing its job, closed off path to his bladder and opened the paths to his balls in preparation for the first squirt of thin cum. His balls tried their best to deliver, but they were no match for the industrial water pump of the hot tub.

Ship Shape groaned at the overwhelming sensation, water threading through his tubes and filling his grape sized balls, causing them to swell a little with the excess water being forced into them. As his plumbing relaxed in anticipation of the next cum shot, the water was once again redirected to his bladder, filling it a little more.

Ship Shape did his best to ride out the intense roller coaster of sensations, groaning each time his body tensed to fire another cum shot, water instead being forced into his balls, causing them to swell just for his body to relax again, allowing the water to instead rush up into his bladder, forming a noticable bulge in his lower stomach.

After what felt like an eternity, his battered tubes gave one last ditch effort to expel the heavily watered down cum in his dangling balls. This vain effort lasted a few seconds, hot water rushing into his inflated urethra, down his trembling dick, through his straining prostate before stretching his seminal vessels as it filled his straining balls.

Collapsing in exhaustion, his flare still stuck in the jet, Ship Shape tried to catch his breath, water still flowing through his sensitive urethra and into his overfull bladder. Gently pulling back, his flare dragging along the plastic tubing almost painfully, he gasped as his shaft popped free, the flow of water into him suddenly stopping. Heaving himself out of the hot tub, he stood on trembling legs, water dripping off his tired form.

Looking between his front legs, his eyes locked onto the tip of his shaft, water dribbling out of his slightly stretched urethra, the hole looking just a bit bigger than it did before. Moving his attention to the massive swell of his bladder, he bit his lip. Glancing at his balls, he stopped and stared.

What were once a pair of undeveloped balls the size of a pair of grapes were now swollen to the size of apples, their weight pulling them down to swing by his knees. Reaching a quivering hoof back, he gently prodded them, marveling at how they swayed and sloshed.

Glancing again at his bulging bladder as it not-so-gently reminded him that it was full, he glanced at the door. Running back to his family's room with his bladder bulging, balls swinging and dick slapping was not an option. Figuring that his bladder was mostly water anyway, and there was a big pool of water right there, his first problem was solved. Draining his balls would be a different matter, though he supposed that if he simply came again, they'd drain right out, and his raging erection might even go down. Stepping back into the hot tub, his eyes drifted to the nozzle again.

One more time couldn't hurt, right?