Minutes after Nia left, Mike fell into a deep sleep. The dirt in the south field had been very hard, and it had required great effort to plough.
At approximately midnight, he was awakened by a set of hands running along his thick arms. He looked up, and saw that Nia was rubbing his arms.
“Oh good, you’re awake,” she whispered.
“What is it?” asked Mike, part of him eager to serve whoever could command the saddle (including the farmer’s eighteen-year-old daughter.)
“Daddy had some beer tonight,” she explained, “he won’t wake for anything, now!”
For a moment, hope blossomed in Mike’s heart – perhaps she had come to set him free!
So Mike was quite surprised when Nia removed her nightdress, revealing her body in all its nude glory. Although Mike appreciated the aesthetics of her firm, round breasts and toned body, he did not at all understand her purpose. Until she leaned in, and kissed him.
“Oh, Mr. Centaur!” she purred, while running her hands across Mike’s deep chest, “You’re so handsome and so big and sexy that I just couldn’t wait a moment longer!” She began to grind her naked hips against his torso. “Mmmmm…” she murmured, while feeling Mike’s granite abs.
“Get up!” she commanded, “Get up and fuck me!” She sat on the ground, and opened her legs.
Mike rose, a magnificent example of centaurhood, and straddled pretty Nia. Slowly, he lowered himself onto her, his horsecock swelling to meet the occasion. It too had grown as a result of the alchemist’s potion, and was impressive even by horse standards.
“Oh yes,” she croaked, “stick that thing in me!”
Mike complied, and began gently pushing his dick into Nia’s wet pussy.
“Harder!” she scolded, “Really ram it in!”
Mike complied again, and rammed his huge cock into her, just as she had asked for. The result was a muted shriek of ecstasy, as he hit her magic spot and then some. Mike really got down to business, and his violent thrusts produced a series of strangled cries of pleasure (her father may have been drunk and sleeping, but she wasn’t going to take foolish chances by giving full reign to her exclamations.) They continued in this manner for the next thirty minutes; Mike was magically compelled by the saddle to keep fucking her until she said to stop, no matter how tired he was from the day’s work, and no matter how many times he himself came inside her. To his credit, Mike gave Nia such a good time that she never noticed how tired he was. Instead, the slutty farmgirl rode one wave of orgasm after the other, until finally she was so tired that she couldn’t take another minute of Mike’s energetic sex.
“Oh,” she breathed, once they were finally done, “What an amazing fucker you are, Mr. Centaur!” Despite his enslavement, Mike grinned at the compliment.