Mark let out a loud whinny of alarm and shifted about, attempting to look down at the vial, struggling to figure out how she would be able to change back when she could not only read them, but she could just barely make them out.
Stepping forward, wanting only to transform back into a human and be male once again, she let out another terrified whinny as the part of her brain that still believed she was a mouse screamed out that she was to exposed her and the she needed to hide. And while the horse and cow part of her mind simple wanted to find some nice grass to eat, the human part of mind struggled to control everything else.
Stepping forward again, another whinny threatening to escape her mouth, Mark heard a sickening crunch and looking down, she nickered in alarm as she just realised that she had crushed several vials underneath her hoof.
Leaning her head down, she nuzzled the broken vials, trying to make out what they might have been. As she did so, the animal side of her gently licked at the mixing fluid and snapping her head, Mark thought, "What have I just done," as the familiar sensation of her body transforming began anew.
To both her horror and delight, she found herself shifting so that she now stood on two legs instead of four, but everything from the waist down remained female and horse. As this occurred, six teats appeared on her chest and as the top two popped outward into breast-buds, an itching sensation caused her to swivel her head about and attempt to stare at her shoulder blades, which had began to push outward in a painful manner.
As she watched as a set of wings erupted outward, her breasts pushed out into an A cup as a white fur coated her body, from head to toes. As this happened, the horse muzzle vanished, but was quickly replaced by what appeared to be the nose and mouth of a cat, as a set of ears common for an arctic fox appeared atop her head.
Staggering forward, Mark thought, "What have I done with myself," as she ambled out of the room, making her way toward the bathroom, her mind a jumble of thoughts common for a tabby, a mare, a doe mouse, a fox, a snowy owl and a human.