Lucy

Nathan knew he couldn't run. There were too many onlookers who could quickly grab him and return him to his sister's feet to garner favour with the eager Mistress Isabella. Nathan vaguely recognised the auburn hair Sissiboi aptly named Melissa as his sister's former beau, Mike, and knew it couldn't be him. That left his former best friend and newly turned Sissiboi Slut Lucy, who was more than eager to bring about his transformation if her previous words were anything to go by. Nathan's mind went into overdrive as he remembered Lucy's venomous promise that she intended to suck him dry and then fuck him into a Sissiboi slut like her.

Craning his neck up, his mind made up, Nathan looked into his sister's eyes and said, "I want Lucy to release my inner Sissiboi, just like she promised to." Mistress Isabella's lips curled upward into a satisfied grin before she turned to her newest concubine and ushered her forward. Lucy wasted no time as she sashayed toward him with a cold, calculating, predatory look in her azure eyes. She grabbed Nathan's t-shirt and pulled him to his feet in one swift motion before forcefully walking him over to a nearby chest freezer and holding it against it.

Lucy giggled as she moved her lips against Nathan's ear to softly whisper, "It's okay, babe; I'm gonna live up to my promise, and we'll both have a fun time releasing your true self." Nathan shuddered as Lucy placed her plump lips against his cheek before landing a series of soft kisses on the nape of his neck, spurning on his erection. Slowly, she grabbed his belt, undoing it before throwing it aside and easing the denim from his legs whilst tearing the boxes from his legs and releasing his hard cock from its cotton prison.

Nathan groaned as the lithe slut eased herself down his legs, taking his cock in her hand and slowly massing his shaft with her expert hands. Her eyes cut into his soul as he thought about the perverse obscurity of the situation he found himself in. Lucy's free hand lightly massaged Nathan's ballsack as she moved her hungry lips toward her friend's engorged cock. Unfurling her tongue, she slowly ran it up his modular shaft and revelled in the taste of the precum that oozed from the tip and slid down into her welcoming lips.

Wanting to heighten both his and her pleasure Lucy slowly inched her tongue up his shaft coating it with her infectious spittle until she reached his bulbous cockhead. A devilish grin crossed her pouty blue lips as she pushed them forward, engulfing his prick between her plump lips that clung onto it like a vice as she furiously bobbed her head up and down, eager to release his seed. A cacophony of orgasmic groans and grunts filled the air as Nathan enjoyed the sensations pulsating from his crotch.

After every release, Nathan was amazed by how the hungry cockslut roused him again and coaxed another load out; unbeknownst to Nathan, with each release of cum a wave of Sissi spittle entered his body, spiking his arousal and bringing about the change from within. Lucy smiled to herself on the fifth ejaculation wave as she tasted the taint of Sissi cum and knew it was time to rock Nathan's world. Slowly Lucy stopped bobbing on Nathan's cock as she released it from between her vice-like lips with an audible pop, enjoying the splash of warm cum as it fountainted over her beautified features.

Lucy eased herself up, lifting the hem of her dress to reveal her engorged member as she roughly grabbed Nathan's cock, which paled in comparison to her own, and threw him to the floor. Nathan gasped in shock as the air was torn from his lungs whilst he felt a pleasurable pain emanating from his rear. Looking over his shoulder, he saw Lucy's crazed lips curl into a savage smile as she pistoned her dry cock into his butt. A raw scream fell from Nathan's lips as the Sissiboi slammed him over the opposite chest freezer before thrusting into him and roughly taking his anal cherry from him.

As the ambrosiac precum oozed from the tip of Lucy's cock and coated her shaft, Nathan's screams shifted into a series of pleasurable groans as he buckled back against the domineering slut as she released a stream of infectious cum between his cheeks. As a fiery heat ran through his form, Nathan knew this was the end, but he no longer cared. Lucy mewled delightedly as she moved her lover off of the freezer and back into the centre of the aisle. She motioned for Melissa to join them. The Sissiboi slut was only too eager as she fell to her knees and greedily deepthroated Nathan's lengthened cock.

Melissa's throat distended as the transitioning Sissiboi's cock increased in girth whilst cum spewed out from the corners of Melissa's lips, barely containing the newly released stream. Following their initial orgasm, Nathan's personality was swiftly subdued and consumed by the whorish Natalie. Lucy and Melissa felt their prey's presence change as the newborn bucked against them. Natalie giggled in whorish delight as her sublime lips plumped up into a set of cocksuckers whilst her lithe tongue slid from between them, eager to catch a drop of cum that lingered in the air.

Lucy grabbed either side of her lother's t-shirt and torte it through the sluts body in time to watch the masculine form shift into one more befitting of their feminine lust. Natalie's former pecs ballooned outward into a ripe set of DD's that rode high on her youthful form. Lucy felt the newborn Sissiboi's bubble butt inflate around her cock before squeezing it like a vice, eager to coax out more of her wicked seed. Natalie eyed herself in the freezer's reflection as her former brown hair shifted into a pitch-raven mane that framed her lustful features.

With her transformation complete, Natalie pushed Melissa away from her cock before erupting over the sluts face. Melissa giggled as she lapped the cum up before sidling up to her new sister, pulling her in for a ravenous kiss and sharing a mouthful of her newly released seed. Natalie mewled in delight as Lucy removed her cock from her enhanced butt, causing it to jostle before joining them in a three-way make-out session. With their lusts temporarily sated, the three Sissiboi's knelt before their mistress with satisfied smiles on their bee-stung lips.

Mistress Isabella giggled as she moved forward, admiring her newest conquest. She pursed her lips to speak: "Welcome to the harem, Natalie. While we don't have anything for you to wear currently, this should do in the meantime." Natalie smiled as Mistress Isabella wrapped a collar around her neck before clipping a leash to it and leading the newly transitioned Natalie out of the shop with Lucy and Melissa on either side of her.