Jenny's moans as the orgasm rocked her slowly changed as a cramping pain gripped her insides, rippling outward from her womb. She felt her organs squishing, rearranging, and she doubled over with a grunt as her ribs reoriented outward, her chest thinning.
As Randall and Thomas watched, Jenny's breasts shrunk, becoming pert and tiny to match her thinner chest, the areolas disappearing and the nipples becoming permanently tight little nubs the same color as her skin. Four more spots on her torso suddenly tingled as the skin puckered, more nipples forming down her chest and stomach.
A grinding could be heard and Jenny let out a long groan as her shoulders and hips *POPPED,* her rounded joints flattening and her hips rolling under. Falling to her side, she could feel the changes as they raced down her limbs.
A burning pressure at the base of her spine had her glancing over her shoulder, her neck easily bending to look down the length of her now sideways-flattening body. Just as she feared, a long nub was stretching from her back just above her ass, growing and thinning, the new skin erupting in an itching sensation. Long, tawny hairs suddenly pushed out, covering the length, growing quickly and covering her tail in a silken mass longer than the hair on her head.
As she followed the hair down, she realized the changes had been at work on her legs, and her feet had stretched out as her shins and thighs shortened. Her toenails had grown, fusing together over her digits and completely encasing the balls of her feet. She realized it was a hoof, and combined with the tail she wailed as she assumed she was changing into a horse.
Her hairless limbs were grotesque, stretched to unsightly proportions, and she tried to bend and reach back to use her new tail to cover herself.
Randall laughed at her attempts, placing a hand on her shoulder to keep her on the floor. "We can't have you hiding the results of our experiments! Every change must be documented and we wouldn't want to miss a single thing, darling!"
Thomas grinned as his eyes swept over her form, leaving Jenny feeling horribly exposed. She reached her hands up to cover her face, and that's when she noticed a tingling in her fingertips. Staring in horror, she waited for her nails to grow and fuse as her toes had, but was confused to see her fingers shortening. A rough callus was puffing on the ball of her palms, and more were forming under each nubby finger as her nails thinned and sharpened. These were not horses hooves! Her puzzlement continued as her thumbs moved up and shrunk with the lengthening of her palm, and she soon found she had large, wide paws with retractable claws!
"Well, well, here's a bit of a mystery!" Randall commented "What animals did you say your took samples from again, Thomas?"