You didn't resist the lust for long, it only takes you cock rubbing against your body for your will to crumple like a sand castle. Your hand latches on like a viper and slides up and down the whole length furiously, using the pre to lube it up nice and slick. You're instantly floored by the intense strain building up in your loins, your hindlegs buckle, rump hitting the bathroom cold tiles with a shocked bray. This, this feels amazing. Frustratingly amazing! The strain is going way beyond your normal threshold, yet your donkey physiology seems to require even more stimuli than this.
Your other hand joins in, cupping and kneading your pole as your awareness dips into the world of fantasy - images of yourself getting serviced by a hot, sexy human woman burns right into your mind's eye. Curvy all in the right places, her ass swaying hypnotically as she approaches you with a teasing smirk on her face. You moan as she cushions your cock between her bust and yours, grinding and squeezing it against your body. Your muzzles meet in a sloppy, passionate kiss as you hug each other close, rubbing those teats up and down your entire shaft. Her tail lifts, and you catch the tantalising smell of a jenny ripe for the plowing...
...You're getting close, so close yet so far. You can feel yourself balancing on the edges, almost crossing the threshold. You desperately hump the floor on your belly, slapping your siring staff around as you keep pumping, you just need more, more...
She turns around and presents herself with a wink and you gripe onto her furred rump and reap the bounty, In. Out. In. Out, faster and deeper with each plunge. Both of you hit the ground on all four hooves, braying in pleasure and delight as you both c...
...You blink away the haze, breathing heavily as you snap back to reality. Your mind slowly booting back up from that mentally-numbing pleasure as you lie on the hard, chilly ground, Your penis still spooling and lying limp in a puddle of your seed. You bray absentmindedly, a feeling of doubt nagging you at the back of your head as you watch your body stretching and filling out handsomely into proportions appropriate for a healthy virile jack such as you. Something's wrong, slipping away from your very being...