To any human onlooker, your hapless attempts to mount the jenny would have looked ridiculous in the extreme. First, there was the necessity to lift the front half of your heavy donkey form off the ground, supported by your two wobbly back legs and the jenny's back. When the suddenly coy jenny pulled away from you, your lower jaw smacked against her back as you came crashing back down on all four feet. It wouldn't have been too bad only you bit your own tongue, which had gotten caught between the rows of blocky, unclean teeth. The pain forced a reluctant bray to escape your throat. You wished you didn't make that awful sound. How could something so appalling be produced by you?
Perhaps the jenny felt some sympathy for your plight as you now stood on four hooves, a hard black donkey cock swaying under your belly, and venting your many, many frustrations with a volley of obnoxious-sounding brays. She trotted back over to you and bumped her snout next to your own. Her tongue licked the bristly hairs that sprouted from your lower lip and chin. Her own dark, wrinkled nostrils flared only inches from your own. You felt the warmth of her exhalation of moist air along your fur-covered muzzle. You inhaled and blasted the donkey mind still so active in the foreground with the appealing scent of her cloying musk. The exchange signaled in no uncertain terms that she was ready.
No! Your hooves betrayed you as you shuffled across the farmyard toward her. You felt your back legs support your heavy form as your front legs sprang off the ground to land on the female donkey's back. You splayed your ugly, hairy legs across her back. The limbs and the blocky hooves at their ends dangled uselessly on either side of the female donkey's back. You grunted as the donkey instincts tried to gain your eager hose-like cock an entrance into the jenny.
As a human man, you had a winning way with women although you had done nothing but look at and flirt with other women since you had married your wife. Before that decision to commit to her, however, you had been quite the debonair playboy and knew your way around the bedroom. Now, as a donkey jack, you felt like an awkward teenager engaged with his first fumbling, bumbling attempts to make out with some inexperienced young girl. You slipped off the jenny a few more times, to your embarrassment, with your deprived cock remaining long, rigid, and quivering.
Another attempt and, perhaps impatient with your efforts, the jenny seemed to help by pushing back against you. You brayed with unleashed excitement as you felt the long cock plunge deep into her. You actually felt excited and triumphant until you remembered that this was a female donkey. You felt sick even as the donkey instincts forced you to start plunging the outrageously long organ deeper into the other donkey. You humped the other smelly donkey for what seemed like the longest time, but nothing seemed ready to happen.
Now you did feel a sense of true absurdity. As a human male, you would already have rolled off your partner and been heading for the shower. Your jaws gaped open, your tongue lolled out, nostrils flared, and your back legs kept supporting your efforts to thrust your cock into the jenny. Why doesn't something happen?
Then, in one mind-blowing instant, something did happen. You and the jenny brayed in wild abandon. You felt the force of a huge load of your new cum, that of a donkey, being expelled from that huge dark cock. The sensation was so incredible you knew you'd never have the willpower to resist it again. That fact made the war between your human shame and your animal lust explode int you're consciousness. It was sadly evident which had won.
You might still tell yourself that, at the least, you had your human mind. But what good did it do you when the jack's baser instincts could overrule you? Eventually, your frenzied brays died down. You slid off the jenny, who resumed her placid hour by hour existence. You slumped off, stood in the shade of the tall barn, and realized you had to escape. You simply couldn't endure such a life. Finding the donkey who had stolen your body, if not before, now became paramount.