Joe was really turned on. He wasn't sure if it was the costume, Anna's aggressive behavior, or that intoxicating scent. But he really wanted her. He kissed her passionately, and she bit his lip a little, drawing blood. Joe didn't remember her teeth being so sharp.
"Oops, sorry, " said Anna with smile. She didn't look sorry. She playfully turned around and presented her ass to him. "Take me, Joe. Fuck me like an animal."
Joe was happy to oblige. He grabbed her ass with his hands, assumed the doggy style position, and thrust his dick through the missing patch covering her crotch. As he continued to shove his rod back and forth, he and Anna were having too much fun to notice that she was beginning to change. Even her increasingly feline growls and purrs as he repeatedly penetrated her did not bother him. It wasn't until her tail slapped his thigh that Joe noticed something was wrong. He opened his eyes and saw the tail whipping back and forth unnaturally. He watched her back twitch, the muscles just below the fur contracting. He backed away, and pulled out of her vagina.
Anna turned around and faced her lover. "What's the matter? Why did you stop? I was having fun, and it sounded like you were, too."
Anna smiled wide, revealing sharp teeth. Her long flat feline tongue whipped out and licked her lips. Her ears and whiskers twitched. And her eyes ... they were yellow like a cat! This was no mask! This was her face.
"Come back here and finish, lover. I wasn't done yet, " said Anna. She pawed the couch, ripping the fabric with the sharp claws on her fingers.
Joe backed up even further, running into a bookshelf. He fell to the ground against the bookshelf, rocking it roughly. The bottle of Lioness perfume perched precariously on the edge of a shelf tipped over, pouring its contents all over his head and body.
"Oh, Joe. Are you okay? That looks like it hurt!" said Anna, as she jumped off the couch. She fell as she tried to stand. Her feet felt strange in the costume. She had to stand on the balls of her feet to walk.
"Oops, guess I am a little clumsy today, too, " she walked over to Joe, her hips and tail wagging in synchrony. Joe stared at her in shock. She bent down and cupped his head in her paw. "What's the matter, honey? You look scared to death. Eww, you stink."
Anna waved her hands, trying to clear the air around Joe of the odor of the perfume.
"Your costume.... it's real!" said Joe with shock and awe.
"Don't be silly. It's just a costume. See, " said Anna, as she grabbed her tail and pulled tightly. She yelped in pain. Now it was Anna's turn to be surprised. She leapt up and ran to a mirror. She looked at her body, pulling on her coat, and opening her mouth wide. Her fears were confirmed. The costume was now real!
She reached behind her back, trying to find a zipper. "Joe! Help me! I have to get this costume off!" said Anna.
"I don't think that is the problem. I don't think the costume did it, " said Joe.
"Don't be silly. It had to be the costume. Why would you think otherwise? " said Anna, still trying to find her zipper in the mirror.
"Because it is happening to me, too, " said Joe.
Anna turned and stared at him in shock. He was holding up his hands. Hands now covered in tawny fur, and ending in sharp claws.