The passion Esmeralda felt was to give him his wish, if only to satisfy her pleasure and sens of fulfillment. She stared at his extended shaft, the true esense of what she spelled Duncan to become.
As he thrashed about, straining to place his flared cockhead up and into her lovely body, Duncan's own passion was turning against him.
Even as they toss and turned the human skin on Duncan was changing color. At first he looked of a deep summer tan, then his skin darkened to dark brown and finally becoming black. It thickened as should be proper of an animal left to stand and turn tail to the wintery winds.
Soft and smooth skin became leathery to the touch, and as he snaked about trying to grasp at Esmeralda's trim body, the stroking of him upon her, made the woman swoon.
Finally in dire need and with the hope of allowing her body to accept Duncan's massive shaft, she reached to the bedside table, a drawer, and opening it, she reached inside taking out a small jar.
From inside the jar came her beauty creme, a flowery scent filled the room, as she massaged the creme upon the tip of Duncan's swelled shaft.
A moment of silence fell over the two lovers, Esmeralda lying there naked before the one who dared to spurn her love.
Then standing above her was Duncan, his legs amid mighty changes, stretched out long across her bed. He held himself up high above her, his arms now changed to forelegs, wrists to fetlocks, and fingers fused by the spell into black, perfectly formed, hoofs.
As she looked down the length of her quivering body, the sight of Duncan's sheath, penis, and enormus balls held her total attention.
Drips of precum now added to the perfumed creme, this making the entry into Esmeralda's body a certainty.
Reaching her hands down to guide the shaft into its desired home, she didn't even whence as it spread her vaginal lips. Cremed, and oiled now naturally, the cockhead slipped into her as would a snake. The expansion of her sex was unlike any she had to this time ever known, her passion for him leaping to higher levels.
Inch by glorious inch slithered into Esmeralda's trim body. She watched with delight and passionate lust until more than a foot of it had disappeared into her slit.
For Duncan it was not without a price, this his first youth venture into the realms of sexual pleasures.
Lifting his head high into the air above the bed, he let out groans of sensual satisfact. His pleasure was increasing and with it so were his ribs increasing in size as chest in girth.
The feeling of Esmeralda's amdominal wall touched to the flat end of his equine shaped shaft, began the thrusting. Slowly at first, he gained speel and rythum. His shaft moved in and out stroking her heart's strings, as she tried her best to clamp down and hold it within her.
Duncan felt a true sense of satisfaction, so much so, his hairy tail began to flick side to side. The feel of this was to the stallion he soon would become a note of added sensation and pleasure. The coarse hairs flicking and by the movement, stroking across changing hairy legs, his buttocks rounding, even his anus pushed out into the light.
Esmerald's soft words drove the young man to become eager for losing his humanity. Her charming ways made giving up his past as eagerly he longed to mount and mate as would any common horse.
Minutes passed as each there on her bed felt a personal delight.
Esmeralda saw her spurning youthful love, becoming as one of her willing subjects. Her moment of passion would turn to dark disgust for one so willingly to let lose of his blessed birthright. For soon, as when Duncan blasted forth his first load of semen, that which was human was exspelled first. Then while still engaged with her womb, his second and maybe third firing load changed away from anything human. Once he had drained his semen heritage, his body was damned to become equine.
The mighty ticking of a clock foretold of the passing of time, and with it went a youth into the beastly life. Neither money or fame, family standing, or his own soul, nothing of what he was could stop the young man from becoming as Esmerald's prize, property, and another stallion ready for stud.