Harley anxiously stood in the weighting room of a high-end brothel, his slightly overweight body trembling as sweat soaked his clothes. "I-- I don't have much time left! Please get me someone fast!" He begged. A moan suddenly flowed from his lips, his voice climbing an octave.

A voluptuous woman with emerald eyes peered from behind the front desk. "I know you don't have much time left as a man, but we can't rush our girls," she insisted.

"Ugh..." Harley closed his eyes tightly. It had only been a week since he discovered he was becoming a succubus. Apparently, succubus blood was in his lineage, and he had awakened these new traits. This brothel had succubi that could supposedly help him in his last male moments.

A tall, shapely woman with long, cream-colored hair and red eyes stepped out. She had a devilish tail and small horns. "I'm Amelia! Right this way!" She beckoned for him to follow.

Harley followed behind the succubus, moaning with each step. This was his last chance to have sex as a man, so he had no time to waste. As they stepped down the hall, Harley's muscles melted away. His hips expanded while his prostate gradually grew into a uterus. In a matter of seconds, his pecs softened and began to inflate.

"P-- Please hurry!" Harley squeaked as his voice climbed a couple of octaves.

"Right in here!" Amelia opened a door and led Harley in. She then stripped down to lacy lingerie and crawled into bed, lying on her back with a knee up and her legs spread. "If there's anything left when you're done stripping, please have your way with me," she winked.

"Ahhh!" Harley cried as his sensitive nipples chafed against the fabric. He fumbled with his pants button and pulled his clothes off. A tightening sensation hit his crotch just as he dropped his boxers. "N-- NOOO!" She girlishly cried in horror, staring past her breasts as her cock gradually receded into her pelvis. Her scrotum had emptied and tightened against her crotch while small horns and a tail sprouted from her body. As she became more feminine, her ass and hips took on a pronounced shape. Her hair darkened to midnight blue.

She stumbled forward and started to climb onto the bed to strip and mount Amelia. "T-- Take your panties off, please! I-- I need to stick it in!" She cried, continuing to lose height.

Amelia glanced between Harley's legs and then let out a soft sigh. She sat up and grabbed Harley, pinning her to the bed. "What are you going to stick in me?" She asked innocently. Without warning, she slid her palm between Harleye's legs and cupped her new, freshly-moist vulva.

"Eeeep!" Harley squealed, instinctively trying to close her legs. "N-- No! I-- I wanted one more chance!" She cried out in pure frustration. Her new sex throbbed with pleasurable, alien sensations.

"Whoever told you to come here made the right choice. We can help new succubi acclimate to their new and improved lives," she teased, leaning in as she nipped on Harley's neck.

A few days later, Harley sighed, staring at her reflection in the dressing room mirror. The succubus reflected at her had perfect hips, great tits, and a perfectly petite, feminine shape. Her new shorts pinched her thighs just perfectly.  

She grabbed her hips, touching her sides and butt as she blushed and watched the girl in the reflection do the same. "I guess I don't look too bad..." She mused before opening the dressing room door. "H-- Hey, Amelia. What do you think?" She shyly asked, twisting one of her fingers in her hair.

Amelia grinned and gave a big thumbs-up. "I am jealous of your thighs," she purred. She was excited to have a new sister and looked forward to giving her succubus lessons in the coming weeks.