Pushing the colt away Albert climbed out of the hammock. Phil tried to reach his lips close and nibble at Albert's groin again.
"No!" said Albert as he took hold the colt's halter and lead him back into the pasture. "There, it's late and I best be ready for bed, tomorrow is another long day!" said Albert as Phil whinnied.
Feeling ever so stiff, as if he'd done a lot of bending. Albert's back ached and his thighs felt stiff. As he walked back to the small cottage Albert called home every step brought a shaky jiggle to his crotch. It was when his hand touch the trouser's front a feeling of something drastically different was noted.
A quick and short run into the house and standing by the bathroom mirror he dropped his trousers. There reflecting at him was the black folds of one leathery horse sheath. Below the sheath hung two testicles equal to those he'd seen hung on a stallion. What he saw was unbelievable, then a gaze out the small window gave a strange sight too.
On the little table next to his hammock was the Medallion glowing all blue in the dark. Kicking off his fallen pants he ran to the Medallion and lifted it up for a good close look.
"Magic, this must be pure magic!" said Albert as Phil and Lena snuffled and whinnied.
Albert stood for a few moments as his thought was of a wild dream. As one hand reached down to massage the sheath he rubbed the Medallion's blue stone with the other. "Was it a dream, if so how did I get this?" he said aloud and looked down at the feeling of a bloating horse cock.
Up and out it grew from the folds of black tough skin. Longer and larger till the thing waived about in the air. Lena sniffed the air and quickly her tail raised high and right again.
"I need to know if it was real! I wish to know if a stallion I could become when Lena is in need, to be her stallion would be an honor! NO,NO, Damn IT NO!" yelled Albert at the Medallion's stone glowed brightly in the dark of that night.
Albert closed his eyes as the feelings pouring out of his groin and huge cock filled every corner in his mind. Standing stiff and rigid he felt the increase of bone and muscle. Breathing heavy drafts of air his lungs and chest gained size.
The scent of both mare and colt he could now distinguish. The soft snuffling sounds of a mare in heat was making him more and more willing to mount. A curling of his upper lip announced to his mind that the change from man to stallion was now complete.
Prancing forward Albert's body and mind was filled with youthful desires. His fiber of this being was ready and able to be just what he wanted and wished to become. As Lena dropped her head low a magnificent stallion mounted her and thrust deep.
The neighbors heard the screaming whinny of one thrilled and satisfied stallion echo into the night.