Cat still ignored her. She embraced the animal, falling on her knees before him. It was then that Grrl noticed the soft, grey hairs growing on Cat's neck under her natural hair. It continued to sprout, forming a mane that trailed down her spine until it disappeared into her panties. Cat paid no attention to the change as sat on her knees in front of the male donkey, mesmerized by the biggest cock she had ever seen in her life. Cat's panties began to get visibly wet as she shifted her rear around, rubbing her shapely thighs together. Her rump began to increase in size beneath her and began to rip her panties at the seams as a long, hairy tail began to snake out between her butt cheeks. Cat could feel the appendage sprout from above her butt crack, and it made her even more excited. It wiggled involuntarily as it popped out of the waistband of her panties, swaying back and forth.
Cat couldn't control herself as she inched forward and grabbed his huge member in her small delicate hands. Her body was betraying her with blinding passion for the male beast. Cat licked her lips with her lengthing, swelling donkey tongue as she slid her mouth over the male donkey's penis. "Oh my god, I think I'm gonna throw up.. Don't do it or you'll become one of them!" shouted Grrl to Cat. Cat paid no attention to the warning and felt her ears tingle as she continued to lick and nibble the beast's member with her now-oversized teeth. Soon her ears were tickling the belly of the beast. Her once small and cute ears enlongated and were now big and hairy, and stuck up eight inches from her head. The same coarse hair that was on her neck and back was now sprouting on her arms and legs. Cat grabbed her breasts and with muffled moans she rubbed them as they began to increase in size. Her small, pink nipples began to grow and darken, and were now a horrendous inch long. A row of four dark nipples began to bud under her newly-enlarged breasts.
Cat got on her hands and knees under the donkey, feeling his pelt on her back and and butt as her hands and feet changed, as her fingers and toes merged into two black, hard fingers and toes. Her legs locked leaving her hairy ass high in the air. Cat's vagina and asshole moved higher up between her asscrack as she began to urinate involuntarily and released her bladder and bowels before her mate, in typical female donkey behavior. Cat was ready to mate with the donkey as she reached back and positioned his long cock between her legs. She rubbed the penis on her inner thighs as the male donkey felt Cat's tail brushing his cock and underside. Without delay, he glided his cock between her swollen pussy lips. His first thrust buried his cock six inches into her pussy. His next thrust pushed her whole body forward but shoved his penis more than a foot up into her. Cat found herself moaning as if this was the most exciting fuck of her life. She braced herself, her huge breasts swinging heavily with his thrusts. Soon Cat started to moan and scream, urging him on, as her pussy squeezed his large cock and milked it. She felt a strange pulling on her rear end as she started waving her ass around, changing the angle of penetration, varying the way his immense cock slide in and out of her. "HEEEEEEEE HAWWWWWWW!", Cat brayed in uncontrolled pleasure and she started to come. The fluttering of her pussy drove the male donkey over the edge and he snorted as he started to gush gallons and gallons of equine seed deep inside her.