Bit by bit, the anxiety moves the thinking mind to accept the thoughts common to a donkey. Mentally one knows of your real self, but at the same time realizes how the body is so different and this in turn changed the sensations one gets from life.
Wild desires or urges pace in the changing mind. As well the male bestial manner to which you are in form expresses the ideals and sensations with one arousal after another. Soon the donkey would have you stand about with a massive erection flared to the most rigid degree.
Eager to meet and mate, the thrills of being beastly comes over your stunned mind. The delight of feeling so newly alive and passionate has you prancing about, showing your wares, and announcing to all the world of how eager a donkey can become.