Halloween night

It was a chilly Halloween night as 18-year-old Henry returned home from a raucous party. He was still dressed as a cat - a simple black leotard, fuzzy cat ears, and a tail attached to the back. As he turned the corner, he accidentally bumped into a girl wearing an elaborate witch's costume, complete with a black cape and pointed hat.

"Oh, I'm so sorry!" Henry exclaimed, reaching out to help the girl up. "I didn't see you there." The girl brushed herself off and looked at Henry with piercing, yellow eyes. "Hmph, how careless of you," she snapped. Suddenly, she raised her hand and recited an incantation under her breath.

Henry's eyes grew wide as dark energy swirled around him. "Wait, what are you doing?" he cried, but it was too late. In a flash, his body began to transform. He felt his limbs shrinking, his spine shifting, fur sprouting all over his skin. Before he knew it, Henry was no longer a teenage boy, but a small, black female cat.

The witch cackled. "There, that's much better. Now scurry along, little kitty." With a swish of her cape, she disappeared into the night. Dazed and confused, Henry found himself on all fours, meowing in dismay. He looked down at his new paws and fluffy tail in disbelief. 'This can't be happening!' he thought. Panicked, he darted into a nearby alley, hoping to hide from other people approaching and figure out a way to reverse the spell.

As he scurried between the trash cans and discarded boxes, he suddenly picked up a new scent with his new feline senses—a strong, musky odour from a male cat. Henry froze as a large feral tomcat emerged from the shadows, its yellow eyes zeroing in on him. The cat let out a guttural growl, its hackles raised. Apparently, it had sensed that Henry was in heat.

Before Henry could react, the tomcat pounced. The two cats tumbled and wrestled, Henry meowing in terror as the tomcat mounted him and fucked him hard. Minutes passed with Henry pinned under the tomcat as it fucked him, but recently he felt some warm liquid enter him and the deed was done, the tomcat slinked back into the darkness, leaving Henry lying there. Henry let out a pitiful meow, realizing his fate had been sealed. He was no longer a human boy, but a female alley cat; now he was pregnant. 

There would be no going back.