Her masturbation session ended with such a powerful crescendo that Tory was completely spent and drifted off to sleep as she closed her eyes and her body tingled in the aftermath of her handiwork with the dildo. Her mind was drifting between different things as she slept, never solidly landing on one topic, but always pausing at new ones as they arrived. She felt the sensation of running, running in an open field, powerful footfalls impacting the Earth, the wind in her hair, being completely caught up in the motion of her body and the freedom she felt as she moved with a feeling of ecstasy. She was getting more and more caught up in the fantasy when she felt herself pulled back to wakefulness. The room around her flooded into her field of view as she blinked her eyes. How long had she been out for? Looking outside the window she could see the sun going down in the distance. Oh no! She thought. Since she had come back in to tend to herself immediately after her... encounter with the strange new horse, she hadn't been able to tend to the other horses! They were probably getting irritated having not been fed or watered on schedule as they usually were. Tory quickly threw on a t-shirt to hide some of her modesty and ran out to the barn. Her horses were all very people-friendly, but could be moody if they did not get their feed on time, and she wanted to get them taken care of as soon as she could. Her steps were quick and somewhat careless as she trotted across the yard toward the barn.
Her nose picked up a peculiar scent as she neared the barn: it was the pungent, thick and heady scent of horse's rutting that she was familiar with from when her mares were in estrus and she was helping them get bred. She narrowed her eyes at the strangeness of its presence at this time, but she could not pause to think about it, since she needed to get to the horses quickly to take care of them. The scent had been light in the air when she first sensed it but as she got closer to the barn it increased in strength with every step she took. As she got to the barn door it was so strong that it made her feel a bit woozy just from the potency of it, but she shook her head, grabbed the door and threw it open.
A blast of pungent musky air hit her full in the face as the door pulled opened It was so intense that her face fell apart into an involuntary silent moan and her knees buckled as her slit wetted itself in reaction. This close to the source, her feminine mind could tell that there was a rich masculine component to the scent, one that hinted at powerful, sleek bodies with long, thrusting members, members that were probably not remotely human. Unbeknownst to her, the outer, delicate lips of her compact and shaven pussy began to darken and expand slowly, the Equus DNA in her body being driven to change her more by a reaction it had to the combination of bestial mating smells and horse DNA in the scent particles. A small nub with the diameter of a quarter began to push out from the base of her spine, at the end of her tailbone. It grew slowly as the seconds passed. As Tory stood there, rooted to the spot and swaying in an entranced stupor, her labia continued to swell ever so slightly, starting to grow permanently in size as her now black folds became thicker and more wrinkled in texture. She shook herself, gathering her resolve and continued walking into the barn, convinced she would get the horses their food, even if her body was all of a sudden reacting with lust to the scent of mating horses for some reason.
As she scanned her surroundings she saw something that made her confused as well as surprised. Towards the opposite wall she could see her breeding stallion, Champ, and one of her mares, Lady, standing there, observing her. Tory was confused because hey were obviously not in their stalls, and they had never been loose like this before. As she stared at them, trying to figure out what had happened, her eyes took in the full form of both horses and she gasped aloud as she saw that Champ had a a fully erect penis hanging out underneath his stomach. The mottled pink and black length of his throbbing two and a half foot long horse cock pulled her gaze, and her still human mind reviled a little bit in disgust at the sight of it. Still though, another part of her reasoned that length was good when it came to sex, and he sure had length... Maybe mares had good reason to be so needy when they were in estrus, she pondered. Something deep inside of her began to stir; her internal thoughts of what was appropriate when it came to sex being influenced ever so slightly, beginning to be affected by Equus's DNA that now traveled throughout her body. Her eyes lingered a little longer than they should have on his penis before they moved back to look at Champ. Champ looked at her for a moment then snorted, looking away from her and walking behind Lady. As he moved towards the mare's rear end, Lady raised her tail up and to the side, signaling to him that she was ready. Champ stopped at her back end, lowered his head to her meaty black vulva and breathed in, taking in the potent scent emanating from Lady's genitals. Satisfied, he reared up and placed his front half on Lady's body, mounting her.
"What is happening..." Tory said as she placed her hand on her forehead and tried to make sense of the spectacle in front of her, having a hard time believing what she was seeing. Not sure if she could watch what was about to happen, she turned and covered her eyes, wanting to get somewhere she could regroup and work through this mess in front of her. She took several steps in the opposite direction before abruptly stopping from running strong furred wall. It was the stallion from before! Her eyes lit up as she saw him. Somehow her concerns for the moment seemed to vanish as she took him in with a relieved look on her face. It was so comforting to see him. Just his presence put her at ease. She threw herself against him and gave him a hug around the neck, trying hard to tune out the sounds of the horses having sex behind her. She breathed deeply of his earthy scent that was familiar and pleasing to her.
"Today has been so strange. But I can hardly worry about what's happening when you're around!" She said with a smile, looking him in the eyes. She went to kiss him on the snout again, suspiciously close to his lips but Equus pulled away and gave her a long stare before turning and looking at the mating event unfolding before them. Tory felt hesitant, unsure why he was ignoring her, but turned to follow his gaze. It was the same sight she had seen before: Champ and Lady in the act of rutting like the beasts they were. She was confused. Did this strange stallion want her to see this? But as she looked on she started to notice something. At first the sight of the horses mating made her uncomfortable, made her want to look way out of embarrassment or uneasiness. But the longer she held her gaze on their glistening bodies moving together, the stallion thrusting his hips forcefully and the mare pushing her hindquarters back to receive him, the more her mind started to change it's perspective and really started taking in all of their motions. Normally she would watch the horses mating as a requirement of making sure the mares got properly bred during the their time of estrus, and it was an act that was purely mechanical in her mind, biologically speaking. It was something that was necessary to produce foals for her farm and nothing else. But as she watched, things began to change in her mind regarding the spectacle. Tory watched the mare's plump, meaty black labia get spread wide by the thick stallion penis parting them and her cheeks began to redden as she started to fully comprehend the sheer size and length of the meaty tool entering Lady's vagina. She began to to wish she could feel what it was like. To have her own vaginal lips stretched as far as they could go by a feral tool of pleasure, one that filled her body and reached further inside her than any man had before. This consideration alone would lead her thoughts to flow further than she would have originally allowed them, as she started wanting not only the feeling but also the action that came with it, to be underneath a stallion. To have a thick and throbbing flared equine head probing her backside, trying to find her entrance, and the rush she would feel as it found her slick entrance and pushed into her, sliding further and further into her. Her eyes glazed over and her mind drifted back to the scent of Equus. How comforting it was. How natural and right it smelled. Her desires were starting to build.