Feeling a sense of duty to one's new self, the humping resumes.
Never in the course of your entire life have you felt such a raw sensation of strength, and the lust as is know to only animals.
Indeed you realize all too well that you have become for Adonis, a Jackass.
Understanding that this should cause you some amount of fear and hysteria, the sexual feelings happening, quell this all.
Humped over this Jenny, you feel your tail swat about with the thrll of every new and building sensation. One orgasum follows another and by the time seven have come and gone, your dread has vanished.
Looking toward Adonis you bray a friendly note.
"Well, you are one for the books, my friend! Most who become my transports find it to be a dishonored thing. They strain to bite me, kick, and jump, acting like an unbroken steed. You, now stand humping and showing me a friendly side. I believe you rather like being a Jackass, well if this be the case, then a Jackass you shall remain for years and decades to come!" promised Adonis.
The Jenny too is enjoying you kindly manners, she brays her happy thrill to you leting the mating go on, and on.
At long last your spent, stepping off the jenny you shaft trails out of her vagina as if a great Python snake. The new length and girth is more than you could have imagined. As with its emerging into the light of day the cool breeze bring a chilly delight.
Turning from the female animal, you walk to your new found friend and master. The monster cock hangs yet out drying of the vaginal slime that coats it from tip to sheath.
"I see you tend to enjoy things for some time after the fact!" chides Adonis of your still stout hanging cock.
Your thoughts are of what you were and now became, to this your mind was made to think more like a Jackass. So thinking as a Jackass, the thoughts of personal pleasures outrank anything else.
Soon Adonis ride your strong back. You trot along happy, content, and feeling the pride of one creature with a cock two feet long!