Becky was walking home; it was an especially hot night, even in her skimpy outfit. She stopped for a couple minutes, wiping the sweat from her brow, enjoying the strong breeze that carried her strong, musky scent. She flicked her tail back and forth, further increasing the amount of pheromones being thrown into the breeze. After about ten minutes, she noticed a straight human couple staring her down. “Ugh. Why can’t humans leave us alone? We just wanna fuck.” She thought to herself.
The man suddenly whispered something in the girl’s ear, making her bust out laughing at Becky.
******
Meanwhile, while Becky was first taking her break, Claire Parker, a college senior, was studying in her apartment, her windows open, the warm summer breeze filling her apartment with a wonderful scent. “Huh? What... what is that?” She said, suddenly feeling aroused.
She felt lightheaded as she stood up and walked to her bathroom, hoping to escape the scent. She looked into the mirror; her pale skin was flushed red, the nipples on her B cup breasts showing through her tank top. She fanned her face and pushed her neon pink dyed hair back, taking deep breaths and trying to calm herself down. However, the wonderful scent suddenly wafted into the bathroom, making Claire even hornier. She heard a commotion outside and somehow knew that’s where the scent was coming from.
******
Becky was about to mouth them off when she heard a voice from behind.
“Hey! What’s the matter with you two? Ganging up on a girl walking home? You two should be ashamed of yourselves!” Claire shouted out.
The couple looked in shame and surprise, shocked by a human defending a slutmare.
“B-but...” the man said, trying to justify himself.
“Shut up! Keep walking. Picking on her just because she’s different, both of you are just terrible!” Claire shouted back.
The couple quickly retreated.
Claire couldn’t believe herself. She’d never understood why people were so mean to these... slutmares, but she’d never particularly cared about them either. And besides - this was completely out of character for her! How was she able to-
Claire’s thoughts were cut off as Becky hugged her, pulling her close. The wonderful scent... the arousing one... the one that had made her so horny... it was the slutmare!
“Thank you. I didn’t even really need the help, but it felt good to see someone that cared.” Becky said, hugging Claire even closer.
“I-it’s fine...” Claire said, blushing but hugging back. “M-maybe you should come inside? My apartment’s just upstairs. I... I could get you a drink, if you want.”
Becky smiled before finally releasing the cute college student. “Sure! If you don’t mind!” She said, with a big smile. She followed Claire up the stairs.
Meanwhile, Becky’s scent was driving Claire insane. She wanted *more.*
As soon as they got into Claire’s apartment, Claire hugged Becky.
“You smell so nice.” Claire said quietly. She knew where the smell was coming from now. Her eyes darted to Becky’s huge cock.
“Thank you.” Becky said.
“I’m Claire, by the way.” She said.
“Becky. Nice to meet you.” Becky said back.
“Y-you too.” Claire said.
She backed off and sat next to Becky, pulling a bottle of wine from beneath the couch. She grabbed two wine glasses from the adjacent cabinet and poured a glass for both herself and Becky. She handed one to her.
“Thank you.” Becky said with a smile.
******
Soon, the bottle was gone. Becky’s pheromones continued filling the apartment. Becky and Claire were slightly drunk.
Claire couldn’t hold back anymore.
“Sorry... can I ask you for something weird?” she said.
“Nothing’s too weird. You helped me out today. Whatever you want!” Becky said.
“C-can I suck your cock?” Claire said, turning bright red.
“That’s all? Of course! I’d love it if you did!” Becky said, pulling her skirt off and removing her panties.
Claire got on her knees. The wonderful scent was overwhelming now.
“A-are you sure? Even though I’m a human?” Claire stuttered out.
“Claire, you really don’t have to twist my arm to suck my cock. I’m horny. I love when girls suck my cock. Do you need me to beg?” Becky said.
“No, absolutely not!” Claire said, louder than she would’ve liked.
“I... um... okay. I’ve never done this before, so I’m sorry if it’s bad.” Claire said.
“With a cute face like that? It’ll be great no matter what!” Becky said.
Claire blushed as she swiftly moved towards the beautiful cock and took a deep inhale from Becky’s full, huge balls. The wonderful scent was near overpowering and Claire almost came just from the scent. She started kissing Becky’s balls, making Becky’s cock harden up.
Claire started licking up and down the shaft before shoving the huge, fully erect cock tip in her mouth. Sucking it fiercely, she made Becky cum quickly. The taste was so satisfying for Claire as she swallowed it all. Her changes began; first, her tail and ears, which matched her pink hair. Then, her hair became permanently pink and much thicker. Her ears finished moving to the top of her head as she began to suck on Becky’s tits that had just sprayed milk all over her. Claire’s own breasts began to grow, eventually reaching H cup size, her hips and ass following. Claire’s pussy and asshole became horsey as her clit grew into a huge equine cock and balls. Her imperfections disappeared; her face became more beautiful and decorated with thick permanent makeup; her nails becoming perfectly manicured. Her apartment changed to suit her new body, a milking machine replacing her toilet.
Claire came as she finished changing, the thoughts of her previous life gone completely. She stopped sucking on Becky’s tit and kissed her, Becky kissing back and grabbing Claire’s much thicker ass.