He was growing uncomfortable with his current body, even though he hadnt even fully checked it out yet. His "hands" started "feeling cramped." He kept thinking he should be on two legs. His back was feeling a little "achey" and "cramped" in his own mind. Jeff's mind wanted to be ulright on two legs. Not be forced to remain on all fours. It felt like he was bent over in his mind, much like how his mind kept thinking his "hands" felt cramped and "stuck' in the form of a hard blocky hoof.
The thick, viscious donkey cum that has pooled around his front hooves made Jeff disgusted that his " hands" were now covered in the nasty goo. He had to remind himself they werent "hands." They were now "hooves, " and it didnt really matter how dirty they got. Much like the bottoms of his shoes. He cant pick anything up to eat fron his front hooves any longer. At least, not for the time being.
"Well, " jeff huffs outward with a "haawww, " "what now?" He thinks.
He hasn't fully checked himself out yet, so he decides thats what's next. If youre going to turn yourself into a donkey for a day, might as look at yourself as one.
He first looks down his own left flank. His body extending further back than he realized. His side a wall of gray. His rear end up in the air, in the shape of a loaf of bread. He notices his tail for the first time, flicking briefly into view. "Haaawww, " he sighs in his donkey's vocalization. "A fucking tail!" thinks he. "Attached to me."
Still feeling like he should be able to stand on two legs bipedally, he keeps his frustration at his forced quadruped stance at bay. "Im a donkey now. I wanted this. At least its only for 24 hours..." But still, the feeling of bring trapped on all fours was no less comfortable.
Hanging his large heavy head, he begins to make his way to the bathroom. But is stopped short by the tiny made-for-human-only door frame. "Looks like im trapped in my bedroom."
No matter. He lifts his front left keg, and swings the door closed. On the backside of the door, is a full-length body mirror. The image reflected back at him came as a shock. A large overweight donkey! Its huge silly broad ears at the top of its head. "Its...its me!" "Heeee...heee haaww!" The ragged irritating noise grates on his nerves.
"Heee hhhaaww!" He brayed at his own image mocking himself. His inability to speak, yet another annoyance.
"Ok, this is really not cool! Wtf? A god damn DONKEY!?" "EERRRGGHH HHHAAWW!"
Jeff attempts to speak. Trying even the simplest of human sounds, but no matter how hard he tried, he simply could not produce a single word. What if he had chosen the "permanant" option? The horrifying thought made him go hard again.
"Im a donkey, " eerrrghh hhaaww, " he said. Staring at his reflection, he continues. He tries saying "im a donkey!" again. Again, nothing but an "eeerrrghhh hhaaaww." He tries again
And again. "Eeerrrgghhh hhhaaww, eerrrgghh hhhaaww, eerrrgghhh hhwaaww!"
Between being trapped in such a constrictive position, unable to speak, seeing his own actual mirror image, and telling himself over and over that he's now actually a donkey, Jeff worked himself back up into extreme horniness. He could feel his new, really large, heavy balls wobbling around back there with each bounce of his body. He couldnt take it anymkre, not being able to rub it out.
Jeff went down to the ground, awkwardly. He managed to position his hose of a penis directly under his large belly. He had unknowingly laid in the large mess of his own making from his previous session. Its all going to be sticking to his fur now. But for now, he begins thrusting his enormous appendage into the floor.
During this new round of masturbation, his front hooves are awkwardly splayed out in front of him. The sight of those useless black blocks in place of hands and fingers made him hornier. He couldnt find any grip. He finally decided to be bent at his front knees, and raise his front body off the ground to support himself on his front hooves. In this positiin, he could see the blurry donkey shape of himself in the mirror.
"Eerrgghh hhhaaww, eerrrgghh hhaaww, errrgghh hhaaw" he started braying again. "Donkey.... Im a fucking donkey! Im a donkey!"
Finally, his penis exploded under him, and the bright colors lost to his vision blew up in a kalaidescope in his brain. Pump after pump of more viscious yellowish goo joined the previous goo all over his underside fur. Some even nanaged to squirt upward into his neck fur.
That eventually ended. He slowly, tremblingly, stood back up on all fours. Filthy, beyond imagination.