Casey Williams was a 16-year-old boy... at least, he thought he was. Lately he'd been hanging out with this cute girl from his class who started recently called Sandra, and she was really nice to him. He wondered sometimes if she had a crush on him, but to be honest, she said some really weird things sometimes. She liked saying how she 'didn't like men', but she liked him a lot. But since he wasn't sure about his gender anyway, he shrugged that stuff off, especially when she'd sent him a message about meeting up 'I think you're really gonna like what I've got planned ;)'.
He came to the address she'd given him, and waited outside the building until the time she said to be there for. The attractive brunette opened the door to him at the promised time and smiled. "Come in, Casey!" she said eagerly.
Casey eagerly followed Sandra in, and he was greeted by a tall, redheaded woman. "Casey, I'm Marion. Lovely to meet you," she said, shaking his hand.
"Thanks," Casey replied, confused but flattered. He took a seat that Marion directed him to, and she and Sandra sat on two chairs in front of him.
"So, Sandra tells me you've been wondering whether you like being a man?" Marion asked in a rather caring tone.
"Yeah, kinda," said Casey. "It's like, I don't really get along with most of the guys I know, and I don't feel like them. "Hell, sometimes I feel like if I could go back to before I was born and choose my gender, I'd rather be a girl," he said, laughing a little.
"Interesting," Marion smiled. "That's quite a rare feeling for men. If it were possible to change your sex, just like that-' she snapped her fingers- '-you think you'd like that?'
"Definitely," Casey grinned. "It'd be really cool to find out what being a girl is like!" As he said that, the lights flickered above him, the gun being fired at him from inside a vent. He didn't notice, instead just starting to feel weirdly hot.
To his surprise, Sandra and Marion suddenly started taking off their clothes. Sandra pulled off her cute strappy top and undid her jeans, whilst Marion unbuttoned her smart shirt and undid and stepped out of her skirt before pulling off her tights and shoes. The two girls strode towards him and his penis pulsed in his pants. "Feeling good, Casey?" Sandra asked with a sly smile.
"Y-yeah..." he said confusedly. "I feel weird though..."
"Understandable," replied Marion, getting behind him and pulling off his T-shirt swiftly, "given what's happening to you."
"Your body's beginning to change," Sandra explained as she unzipped and pulled off his jeans, "and I think you're going to enjoy it a lot."
Marion pinched his nipples, and he let out a keening high moan. "Feel all those new nerve endings accumulating in your chest?" she said softly. "Your undeveloped male chest is being allowed to blossom. You're growing such lovely breasts." Having her cup and rub his chest felt amazing.
He could feel his skin softening and smoothing all over too. His body was becoming less hairy and more smooth, less muscular and more lithe, less handsome and more beautiful. He felt Marion's hands press against his soft torso to gently push him inwards and give him an hourglass figure, whilst Sandra jiggled and cupped his thighs and butt as they rounded and filled out.
At last, Sandra pulled off his underwear, exposing his penis and testicles. Smiling, she gently pulled back the foreskin and gave a gentle rub to the head, making Casey moan hard, before her hand cupped his scrotum, gently but firmly pushing on it until his testicles were pulled back into his body, leaving loose skin. He watched as she smoothed the skin until it was closer to his crotch, and then eased her fingers inside him, making him moan. "How does having her inside you feel?" Marion purred.
"G-great," she panted.
"I can see your penis is shrinking too," she grinned. She was right; each time Sandra thrust her fingers inside Casey, her hips gently ground towards her and her penis shrank almost half an inch and became less defined and hard, and more and more sensitive. "Did you know that a woman's orgasm is ten times more pleasurable than a man's?" Marion added teasingly. Casey could believe that- not only was her penis, which was rapidly becoming her clitoris, incredibly sensitive to every gentle stroke Sandra's finger gave it, but she could feel the most sensitive point in her body move from inside her ass to inside her vagina. Suddenly the gentle stroking of the roof of her passage Sandra had been doing made more sense, and she came harder than she ever had in her life, for a moment being able to think only of her pleasure, before her consciousness returned and she saw Marion and Sandra smiling at her.
"Welcome to your new life, Cassie."