Boombox Boogie 3: House Party

Back to this one again! The magic boombox that turns women into thick-assed slutty dancers who can’t get enough of the wielder. I’d left off the last story with his mom and sister coming home, to his panic, so had to keep running with that one. I still got a lot of inspiration from Preverence’s 3D twerking gifs and for some reason when I’d blank out on what they were listening to, that pop song Toxic would fill in the gaps.

The lowkey transforming and mind-warping’s still fun to mess around with once in a while. Mostly, I find, when it just makes the ladies involved mindlessly horny and interpreting that into their new weird logic.

The funky music pumping out of Nick’s newly discovered and magical boombox was usually a herald of good news. The beats had some mystical trigger that made every woman around him thicker and hornier as they’d become compelled to dance and grind for him.

It was all going pretty well until he returned home to rest and his mom and sister came home. The brainwashed family members moved in on him like all the rest before he could reach the switch on the boombox, pressing themselves up against him. Mom’s huge soft breasts squashed over his face while his long and dark-haired sister Amy sat in his lap. Her tight jeans hugged her curvy figure and thick booty, and they only got tighter as she started bouncing it in his lap to the beat. Every jiggle distorted the size of her ass cheeks, staying slightly bigger each time as if frozen as the peak of the wobbling.

“Ohhh my god, Nick!” Amy moaned, running her hands through her silky dark hair.

“Why didn’t you ever show me this music before? I never knew you were this cool! Or this hot~!”

Nick could hear the wobbling as her curves got even bigger. The thick ass slapped harder and harder as the weight increased, bouncing pleasantly against his bulging erection. Her tits were getting too big for her top as well; he could see them expanding too wide to be hidden by her back. They slapped together audibly inside her top as he could hear the fabric of her shirt tearing.

His mom had slid in beside him. The brunette milf ( he’d heard his friends talk when they came over to hang out) was already a plump woman, clearly a bit of a bombshell before she put on weight from having and raising her kids. She had rounded out the middle of her own hourglass, her wide hips and big soft boobs in some tight leggings and a simple blouse.

Nick had seen the boombox turn grannies into gorgeous cougars, so he flinched as her huge rack pushed into the side of his head. His mother moaned and ran her hands over his chest, pawing desperately at his body as he could hear her heart race to the beat through her massive tits. They only grew larger as her plump upper body pushed harder up against him before gyrating back, fluidly dancing and thrusting her hips like a slutty backup dancer at him.

“Sweetie, I didn’t know you had such good taste in music! I remember when me and your father would turn this one and…”

“Mom!” Nick blurted out, trying to cut her off.

The milf giggled as her swelling tits grew even bigger, slapping him in the face with their pillowy softness.

“Oh, sweetie~! Don’t be shy. I’m your mommy but I’m still a woman. And a woman has neeeeeds OHHH~!

It was then that his mom’s tits got too big for her bra. They burst right out of her clothes, swelling over the top before breaking through the fabric completely. She let out a euphoric moan, biting her lip as she clearly felt the same mind-numbing pleasure that came with the music’s entrancing transformations. Thick, hard nipples wagged on the tip of her wildly jiggling tits.

Nick’s mom started to wrap her arms around his shoulders, planting hungry, wet kisses all over his face. It was like she was desperate for his attention, and as if her overgrown tits resting on his arms and shoulders weren’t enough to get it.

“Ugh! Mom, you’re so embarrassing!” Amy scoffed, rolling her eyes at her inflating mom.

“I’m trying to put the moves on Nicky here. Put your gross old boobs away. Nobody wants to see that. IIII AHHH YEAAA~!! This fuckin’ solo!”

Amy’s ass twerked with a sudden burst of speed before it literally burst out from her jeans. The fabric tore in several spots along her hips and legs, with her fattened cheeks pushing right out the middle of the back. Her ass took up more space than his entire lap, almost a beanbag chair making fleshy clapping sounds on his dick. Her panties were stretched to their max, forcefully turned into a thong as her overflowing buns swallowed it up between them.

Amy panted in a seemingly orgasmic reaction to the song and its powers. She clutched herself as she ground her ass harder onto her brother’s erection, running her hands over her own sides and chest throughout her pinning lapdance.

“Oh my god, I can’t… I can’t help it. Stick it in me, bro!” Amy blurted, glancing over her shoulder with half-lidded eyes and parted, panting lips.

“I need you so bad, mack daddy.”

“Okay, Amy…? That’s just the music talking. Plus nobody’s said ‘mack daddy’ in like twenty years,” Nick assured her.

It was equal parts trying to convince himself, because he was feeling more and more tempted by the hot grinding of his family’s overgrown assets.

“You heard him, Amy,” his mom said, a scolding tone to her words.

It failed to have much impact with all the horny moaning to her voice.

“My little Nicky wants his big mama titties, doesn’t he?”

“That wasn’t my point!” Nick managed to blurt out before she cupped and shoved her jiggling jugs into his face.

The big soft flesh covered his face, with one of her hard nipples stuffing right in his mouth. Any further complaints went away, and not just because he could barely breathe in the colossal cleavage. The next thing out of Nick’s mouth was a quivering sigh from sucking on the huge breast and the fat ass hotdogging his dick through his pants. The fact that they were his family members under the spell of a magic boombox started to feel a lot less important.

“Now why don’t you hit mommy your rhythm stick?” the milf purred, firmly running her hand down his chest.

His mother reached down his pants, finding and squeezing his young cock. Nick moaned and immediately thrust into her hand, which was still being bumped around by Amy’s twerking. His sister frowned and shoved her mom’s hand away.

“Oh please. You ain’t had any action since he was born,” Amy taunted.

“I’m the one who knows how to give him what he wants.”

His big (and getting bigger) sister tore off her jeans like they had only been held on by velcro. Amy grabbed and pulled down Nick’s pants with matching strength, empowered by whatever the lust-inducing music wanted her to do. She pulled her new thong aside, just enough for her to fully expose the last of her crack and asshole to him. She brought her booty crashing back down, colliding with one more thick clap as it swallowed up his cock. The song had made her ass so perfectly soft but tight as Nick gave a deep gasp, shaking as his hips instinctively humped her asshole. As much as he enjoyed it, Amy’s shrill shouts and squeals made it sound like she did twice as much.

“YES! FUCK! Oh my god, this is so good ‘fuck me music!” she ranted.

“Always better with a dick in you! Thank you so fuckin’ much for sticking all that thick hard… music in me, Nicky!”

His mom frowned and slid away from Nick for a moment. She squared her shoulders and thrust out her chest, bumping her tits into Amy. It was apparently hard and strong enough that the jiggling orbs sent his sister popping off his cock and stumbling back to her feet on the opposite side of him.

“Please! You’re an amateur at best. And I had better not hear that you’ve been showing up at the clubs lately,” his mom scolded.

She turned back towards Nick with a much softer and more seductive expression. She fell to her knees, her own widening hips spilling her fat ass out from her torn leggings. Her full lips wrapped around Nick’s cock, uncaring that it had just been in her daughter’s ass as she started to bob her head. She moaned loudly, like it was both the best-tasting meal and the best sex she’d had in years. Her eyes rolled back as she drooled a huge, sloppy mouthful of spittle down to his balls, looking sluttier than anything Nick had even seen in a porno. Her rapidly bobbing head and hungrily slurping tongue moved to the rhythm, and even her overgrown breasts were clapping against his legs to match the beat.

Amy gave a jealous pout before she grabbed her mother by the hair. She gave it a firm yank, forcing her sloppy wet mouth off his cock and standing her back up. Her hips bumped into her mother’s, forcing her to stumble aside a couple paces.

“Hey! I was here first! I get first dibs on Nicky’s dicky!” she insisted.

“You decidedly were not! I gave birth to you, AND I drove you home! You’re only here because of me!”

Nick’s mom thrust out her breasts, bumping them into her daughter’s. Unlike earlier, Amy stood her ground. Her breasts had started growing and apparently got big enough to not only spill out over her top but to hold up against her mom’s. Their tits squashed into each other, and as they ground together Amy’s swelled to match hers at a rapid pace. She glared right into her mother’s face as their boobs wobbled together like stacked up lumps of jello. The remains of their top audibly cracked and creaked under the pressure.

“I’m his mother so I’d know best! Whether it’s what he likes for snacks, or how to blow his mind and his cock!”

“I had to share a wall with his room when he started masturbating! I know what makes his sweet little dick click, and I bet it wasn’t granny porn!”

Amy swung her hips to the side, bumping them into his mom’s. The rubbery bumping sound had the same result as their tits; it seemed to share the mass of her ass with her mom’s, giving them matching magically huge curves. Even their stretched out panties and torn bottoms looked ready to burst. Their extra thicc faceoff and eager teasing had Nick jerking off desperately as he watched them go at it.

“You… you disrespectful little turkey!” his mom snapped.

She stomped her foot and spat in Amy’s face. The outrageously sexy sister gasped, and to Nick’s surprise it wasn’t one of anger or shock. The overly horny Amy shuddered, her big curves wobbling as she licked some of it up greedily. She ran her hand over her chin and smeared the dripping spittle over her breasts as well with a soft moan.

“Lonely old sucka!” Amy suddenly hissed.

She pinched and twisted one of her mother’s nipples, making her give a shrill and lusty wail. Her body writhed rhythmically, swaying her hips in a horny dance more than a writhe in pain. What was more, as their faceoff started to reach its heated peak, the ladies were starting to glow. Gold light radiated off Nick’s mom while his sister radiated some pink.

“Oookay, this is new…” Nick muttered, slowing his stroking.

“You…”

“You…”

“Bogarting bitch!” they both shouted together.

They both gave off a strong and sudden flash in their respective colors. It blinded Nick for a moment and when he could see clearly again, it was like they had gone through a magical girl transformation with their clothes. Rather than frilly skirts, they were dressed like some of the sluttiest, horniest music video dancers he could imagine.

Amy was suddenly wearing some bright green booty shorts that were maybe a few inches of total mass, emphasizing more than covering her ass. They were attached by suspenders that barely covered her nipples, flattening and bulging up her breasts a bit more with some gold chains and medallions hanging between her cleavage. His mom was wearing what appeared to be nothing but platform shoes and a glittery gold leotard, making it look like she was somewhere between a stripper and an Egyptian queen. It rapidly thinned just below her chest, barely covering her pussy to show as much cameltoe as her daughter. Some gold lipstick matched it and her hair had been bound into a series of beaded braids in the back. They otherwise hadn’t budged from their staredown as the music peaked its blasting solo.

“Well, Nicky? Which one of us gets you bustin’?” Amy demanded as they both turned to face him, tits jiggling to an unsteady stop.

Nick just gave a hushed gasp as he shuddered, cumming at the full view of his fully transformed family members. He slumped back against his chair as he kept his eyes locked on them, squirting his jizz onto the floor in front of them.

“Uhhhh…. both,” he moaned, shaking his head as he looked between them.

His curvy family’s expressions quickly softened at the afterglow mumbling. Competitive or not, they were clearly still susceptible to his words. His mom folded her hands and beamed proudly while Amy relaxed her stance, letting her curves bounce along with it.

“Awww, my baby! You’re so good at sharing!” his mom gushed.

“So long as I get a piece of that stud meat. What’s the plan?” Amy asked with a shrug.

---

As much as he liked the flashy new outfits, Nick was glad to get them naked in his mom’s bedroom. He made sure to bring the boombox along and they were all too happy to comply, and the boy made sure to keep his protective totem necklace on just in case. He hadn’t heard the music without it, but he’d seen those who did and didn’t want to shake up the good thing he had going. His mom had a big enough bed to hold him as well as his puffed up mother and sister, so he had settled in there. He laid flat on his back, watching his naked relatives both squat and twerk their asses around his dick. He moaned deeply as their wobbling cheeks worked him back up to another throbbing erection.

“This really is so much better together,” his mom moaned, bumping and grinding her cheeks into her daughter’s.

They sandwiched and rubbed up and down Nick’s cock in perfect sync. It was no coincidence that it happened to be to the exact rhythm of the magic radio’s rendition of Dickin’ Deep.

“Damn right. You’ve got some sweet moves, foxy mama,” Amy moaned.

Her buns bumped back into her mother’s before she reached back, spanking them both in one wide swing.

“Oh please. You can call me Sharon now. We’re certainly that close by now,” his mom giggled.

She turned her head around enough to tilt her daughter’s face and pull her into a deep tongue-kiss. Their mouths hung open enough to make sure Nick could see everything, their tongues rolling and rubbing around each other to smear their runny spittle together.

“How about you move onto your solo acts?” Nick tried, learning that they responded to particularly themed direction much clearer no matter how vague he sounded. They’d do anything he said anyway in their increasingly sluttified bimbo states.

“Ooh! Yes, daddy~! I mean, son!” Sharon chimed.

The girls split up, peeling their thick and sweaty ass cheeks apart to climb on opposite ends of him. Sharon spread her thick thighs and sat on his face, pressing her perfectly smooth and excessively wet pussy into his face. The musky smell and taste got him moaning and slurping up all that he could, not bothering to wonder if his mom kept her crotch perfectly shaved or if it was another side effect of the transformations. He kissed and lapped at her crotch, which delighted her to no end. Sharon was moaning immediately and screamed like a madwoman anything he pushed deep enough to slap his tongue on her clit. Her hips swayed the whole time, unwilling to stop vibing with the music even in her especially horny state.

Amy went to town slobbering over Nick’s cock, lapping at it like a needy dog. She coated his cock and balls completely in her warm, drooling tongue before sucking all the spit and leftover precum back up to leave nothing but a thin, slick coat of saliva. She looked up at Nick with wide-eyed delight and excitement, catching his eye whenever his mom’s jiggling booty gave him a clear enough line of sight to see her.

Amy mounted his cock from there, planting her heavy hips and riding him hard. Her hips bucked along to the beat, even if her huge curves jiggled out of control. They added an extra bit of thrust to each gyration, her grind dance losing a bit of its rhythm when she’d thrust into him just for her bobbing booty to finish wobbling and add a second push to it.

Amy bit her lip with excitement, eyes rolling in the same mindless euphoria that came with the music. Anything that let them dance and grind on someone blew their minds, so dancing on her brother’s dick in their orgy was ecstasy for her. Her hips kept on bopping and grinding to the beat, and he felt a particular wiggle to their figures as their tits flopped around. They’d clap together as they shook their shoulders and bobbed their heads to the music, occasionally breaking from their enthusiastic moans and cries to join in at some favorite parts of the song Nick had never heard before.

“OHH~! AHH~! MMF, YES baby. Give it-” his mom panted.

She broke off as both her and Amy burst into the start of the chorus.

“Ooooh, when you’re dickin’ deep~! Make it good with your wood, that’s all I need~!”

“Fuck… oh fuck… I fuckin’ love… love… this song,” Amy panted breathlessly.

Her rhythmic humping and the mouthful of his mom’s horny juices had Nick’s cock pulsing and ready to go. As the song hit its last few notes, all three of them thrust hard to the beat. The pinned boy nutted hard inside Amy, shooting her full of his hot load. Right on cue, his passionately mesmerized lovers tensed up and squirted fittingly massive and messy orgasms over his face and crotch. The mixed mess of cum shared between them soaked into the sheets, the hugely curvy women crushing him with their soft but roughly humping curves. Nick let out a faint wheeze beneath Sharon’s crotch, bubbling quietly through her pussy juices.

“MMM! Baby, you’re growing up so big and strong. Nobody can do a mother-son dance quite like we do,” Sharon sighed, running her hand through her sweaty hair.

“Guess you really are less of a dork than I thought with moves like that,” Amy sighed as well.

The ladies slid off Rick before his mom leaned in and kissed him deeply on the mouth. He was so exhausted his lips were already open, taking her tongue into him and sharing the taste of her cum with him. His sister slid in next to her, their big asses and breasts squashing together at their sides. They traded another wet kiss between the two curvaceous women.

“Glad you liked our latest hip-shakin’ jam,” the DJ crooned through the speakers.

“We’re gonna take a quick breather, then get right back to you swingin’ cats with Midnight Smash and Backalley Redlight Baby.”

As the radio turned over to a generic disco beat and the women in Nick’s life started making out, he slid out of the bed while they went on making out. Nick left them to enjoy the moment together, slipping out to his room with the boombox in tow. He quickly changed back into his clothes, and listening in, it sounded like Amy and Sharon did the same. In the recovering trance of the music, they quietly got dressed and forgot the last hour or so of their lives.

“Nick? You home?” Amy called as he heard her walk through the hall.

Nick sighed in relief, flopping contently down into his bed. He had the whole city at his command if he wanted, but it was nice to know that he had his family around as a fallback if he needed some quick relief.

“Nick!?” Sharon shouted much more impatiently.

“Were you messing around in my room?! This bed’s a mess!”

Nick sighed and picked his boombox back up.

“Man… alright. Fine. Nothing a little mood music won’t fix.”