Splattered and quickly drying donkey semen clings to the face hairs, about the ears and in various places, granting you the acrid scent you shall come to love.
Even as this fellow does his thing the mass of changes envelope him making of his human self a larger breed of donkey, he looks and acts the part of becoming a farm stud.
As horrified as what your feeling are, the sight of this sexual act instills in you some perverted desire to gain and have for yourself something similar. The proud donkey jack comes closer, he reaches his head forward and grants to your changing maleness a friendly lick by a big pink tongue.
Tainted and changing, you can begin to understand some of what this fellow felt, and from it you seem to agree; the life of a farm stud appeals to your darkest desires.