The mind is in rapture as back there behind your head has risen another head, a flat head. What you knew to be your male organ is now just a whisper of something which brings you intense desire.
Your munching of oats has pleased your inner need but the want for it has made your male organ risen to the erection worthy of a male donkey. You might not be able to see all of it but craning your head and neck to look back and down one eye can see what is making you horny.
There jutted out from those two hind legs is this blackened shaft. It sticks out long and rigid bringing on strange thoughts of scents and pictures of hariy rounded rumps and ropey tails.
You eye the end of this thing thinking back you memory of something simular was more rounded at the end and not flat as a pancake.
"Pancake, what is a pancake?" you wonder where the word came from and what it was, you can't remember that!
Yet you know the end of this this is flat except for a ring of flesh which spreads out from the end of it making you think of a plunger.
"Plunger, what is a plunger?" the thought makes you think of some funny white chair where those who need to release their bodily wastes go to relieve the feelings. You shake your head with wonderings, the movement makes the black shaft wobble about bumping into your furry belly.
The touch of it to your shaggy donkey furred belly sends wilder than wild impulses into a brain already on overload.
From deep within your brain come the thought you should wander and let your nose find the right scent for doing something of pleasure and instinctive need.