The zebra stopped. Looking back down at Ty within a malevolent and insane glint in his eyes, he said “I think I’ll take you for myself.”
With that, the zebra aggressively grabbed Ty’s head with one burly hand, and raised his massive equine member with the other. With an aggressive snort, the zebra plunged his immense cock past Ty’s lips and down the poor boy’s throat. Ty let out a muffled scream as he lashed out in panic against the zebra, not that his frantic punches and slaps did anything to the massive chiseled zebra man. Ty’s gag reflex was screaming for the immense phallus to leave his throat, but that was entirely up to the zebra. It didn’t help when massive ropes of cum were shot strait down his throat into his stomach.
Finally the zebra released him and Ty fell on his hands and knees, coughing and gasping for air.
“The worst of it is done human. What comes next will be far more pleasant.” He said with a grin spreading over his striped equine muzzle.
Before Ty even gained enough breath to ask what he meant, he felt a tingling sensation spread through his body as every part of him started to shift and change shape.
His toes merged together into solid black hooves as his legs completely changed their structure. His feet and legs grew into the digitigrade structure of an equine, growing much longer and bulking up with muscle. In fact his entire body was growing and bulking up with muscle among the other changes. Fuzz appeared over all his body, and soon grew into a dense but smooth layer of black and white striped fur. A tail grew from the base of his spine and began involuntarily swatting at the air behind his ass.
Ty wondered what it’d be like to have a titanic member like the zebra’s, but his dick appeared to be growing in the opposite direction! Remembering the zebra’s words, he sighed in resignation over what that would mean for him. Seconds later, his cock receded back into his body, and a big, black, puffed equine pussy took its place. Ty marveled at the sensation of his… or he guessed her vaginal passage forming. Muscles grew within the vaginal walls to pleasure the cocks that would enter it, and sensitive nerves grew within the vaginal walls so that Ty would be pleasured by the cocks that would enter it. Ty felt her uterus and ovaries form, and knew that this was no superficial change, she could bear young now.
Other changes continued. Her ribs cracked as the shape of her chest expanded into something more akin to the wide barrel-shape fitting of equines. As a consequence the capacity of her lunges grew exponentially, a zebra’s stamina was now hers. On top of all that, two breasts grew atop her already immense chest. The nipples on the new D-cup mammaries were so sensitive that the very air made them perk up.
Finally her head changed. As her ears stretched and migrated to the top of her head, her face grew out into a muzzle. Nostrils flared as they expanded, loudly sucking in an appropriately large gasp of air into her immense lungs.
Rising to her hooves, she looked down over her astonishing new body. Her long, thick, new neck was unexpectedly flexible so she wasn’t missing out on a single detail.
It seemed there was a dual nature to her change. On one hand she had gained a Spartan physique she couldn’t have dreamed of just earlier that day. Even on her female body, muscles visibly rippled. She at least matched up with most of the male stallions as far as strength was concerned. Her ridiculous height meant that she would have to bend over to use human doorways now. But on the other hand, she was obviously female now. Female forever now as the beastmen made abundantly clear as she was taken to undergo her transformation.
Realizing the permanency of her change triggered some strange instincts within her. Her muscled mare’s vagina winked in arousal as it lubricated itself. She stomped her hoof and snorted, gritting her teeth and smiling with an insane newfound satisfaction flowing from the realization. The boy she was is gone forever. He was weak but she is strong! The idea of subjugating humans with her herd got her blood flowing. The idea of being mounted by a strong male and bearing his foals made her zebra vagina wink again, and caused her to whinny in excitement.
Speaking of which…
Turning around, she saw the zebra stallion who turned her sitting on a ruined sofa. Watching on smugly with his equine cock at full mast. Ty grinned in anticipation. Sauntering over with her dense, muscled thighs, and wide equine rump. Grabbing the headrest of the sofa, she moved to straddle the stud.
But the domineering stallion was having none of that. As Ty began to lower herself, the male grabbed her and threw her onto the couch unexpectedly. Throwing himself on top of her immediately after.
Ty was startled by the act, and her initial impulse was to vie for dominance one more. But considered against it. She might’ve had strength enough to contest this male, but something in her was deeply moved by the aggressively dominant act. Deep down, her instincts told her that this would be a superb mate.