Bowser felt hot all over his body, skin tingling as he felt his stomach skink. For a moment he thought the potion he just drank was extra acidic or something, but…


“Aggghh!” Bowser grabbed his stomach dry heaving right in front of his royal Magikoopa; the potion was supposed to make him feel powerful, not powerless. However, his roiling gullet sapped all his strength and made him feel like he had something growing in there?


“Don’t worry boss, the weakness is a side effect. You’ll feel great in no time, hehehe.” The Magikoopa reassured him. Giggling like a boo as Bowser’s entire body was enveloped in a light pink hue.


He could feel his body changing, weakening, shrinking and it felt soooo good? And it wasn’t just any normal pleasant feeling. Bowser could feel his Koopa cock harden as jolts of heated pleasure radiated through his body, and with it came the changes.


His shell shrunk down, becoming a lighter shade of green as every spike on his body became short and rounded; finally settling at a size no bigger than a Koopa-Troopa. Next, his arms and legs diminished, getting replaced with thick fat, and shrinking bowser’s height significantly. Bowser fell onto his hands and knees as his ass expanded, becoming a plump little peach.


Yet, Bowser still enjoyed experiencing these changes, and almost felt disappointed when he stopped shifting. He was a Koopa-midget of his former self and hazy with sexual pleasure in ways Peach never brought about. His cock twitched and trembled uncontrollably, leaking glops of cum like rain onto the stone floor beneath him. Bowser tried to stand and resist the changes, but his new massive ass caused him to fall back down to his knees, his cock firing a load of cum onto the stone floor. Almost to reward him for enjoying his newfound weakness; yet, it didn’t stop there as the pink hue returned and with it the pleasure


“N-no please.. sto-ngghhhaaa” Squealed Bowser, but it was no use. An even stronger shiver shot up his spine, causing his eyes to go cross and his brain to short circuit. The Magikoopa giggled, “Hehehe you look a bit ditzy sire, hehehe!” Clapping his hands in rhythm to the squirting of Bowser’s ever-dwindling body.


Bowser jolted backward arching his back. His cock shooting out increasingly thinner drops of cum as his belly bloated, becoming round like a pregnant woman. He rubbed his bloated pulsing stomach; it was as cushiony as his ass now and the spell was far from finished. Bowser’s eyes fixated at his twitch cock now shooting cum at a drizzle, and he saw his chest swell and worse his cock diminish. His ruined fattened into chubby man tits, before puffing out into a lavish pair of D-cup breasts that put Peach’s to shame, but it was a trade. With each gained cup size Bowser’s cock lost inch after inch with each potion fueled orgasm. Soon devolving into a twitching nub as the last real ejaculation he had dribbled out of his clit-dick.


“Wowie”, the Magikoopa taunted, “You got a lot of masculinity inside you, but don’t worry you’ll get it all out of your system.” He paused to laugh, “Hehe, one way or another.”


Bowser was too overwhelmed by orgasmic fueled terror to respond, but he could feel one last change building up inside him. His stomach rumbled; It was like whatever was massing inside him wanted to burst out and Bowser wasn’t going to fight it. He loved these new exhilarating changes and wanted more! Even as his skin turned a dark shade of pink, even as his nipples puffed and his balls shank to raisin size; he didn’t care, he just wanted more. 


And gladly accepted every ounce of pleasure the spell provided. Panting like a bitch in heat until he couldn’t anymore. Bowser lost all lip control as his maw extended out. Bowser thought he’d be getting fat kissy lips, but he was super-wrong. His lips kept extending, drooling as they molded into a permanent O-shape that wouldn’t close. Reaching out half a foot from his face, until finally settling on a birdo like snout that constantly echoed soft moans. Instinctively bowser reached out to feel his new lips and with one touch his new clit-dick shot drops of clear cum onto the floor.


Hazy and wobbly from his new sensitivity Bowser could only squeeze his new tits as his belly grew to maturity and with its maturation, the mass wanted to come up. The old bowser might have fainted from the size alone, but his new birdo instincts kicked in. Easily stretching his throat, then snout. The new muscles working to push the rounded object out his new sensitive snout. Parting like a pussy for this egg, causing the most intense, and mind-melting pleasure Bowser had ever experienced. He could feel the last few traces of his sanity leaking out of him, right through his new muzzle.


Along with the egg which dropped onto the floor, cracking, and spilling out its thick blue contents. Bowser felt like the goop might have been important, but she was too busy cuming to care. Cross-eyed and ditzy as she felt she should be. The whole scene caused the Magikoopa to roar in laughter. 


“Hahahaha, that egg contained the last of your masculinity. “The Magikoopa pointed at the ground laughing, “You’re going to be a sissy slut forever and I know someone who will appreciate your new form. Jr your “father” is ready.”


Bowser looked over her new feminized body, the last trace of her masculinity was her small pink nub cock and she was certain she’d never cum normally again. The best she could hope for was to leak like a girl and the way Jr was looking at him made Bowser feel like she was about to. Jr pulled out his juvenile cock which wasn’t the most impressive, but at the moment his package dwarfed his father’s nub. 


“Mmmmm.” Moaned Bowser unable to communicate her confusion. As her son easily pulled his daddy’s long pink muzzle down to his crotch level.


“I know you must be confused daddy, but you’ve been the leader for too long. It’s time to let the new blood take over.” Bowser’s O-shaped open maw drooled as the sweet musk of her son’s cock hit, “But don’t worry daddy I’ve got a new job for you!”


Jr grabbed both sides of Bowser’s snout and pushed his cock into her mouth, thrusting wildly as he scrapped the top of his dad’s extended lips. Bowser thought she could fight, buuuuut sucking her son’s tasty cock felt so right, and it made her feel suuuuper good. Bowser’s clitty leaked over the floor as she grabbed her son’s shell forcing his entire length into her new sensitive lips, which instinctively tightened to better milk her son’s cock. If Bowser’s masculinity was gone forever she might as well embrace her new role as Koopa-cumdump; long live the king!


Jr clung to the back of Bowser’s head moaning, “Oh daddy it feels soooo goooood. I knew you’d make a great royal slut!” His movements were quickening and Bowser could feel his cock throb harder in her lips. Bowser knew her little boy was about to cum and  sucked harder, and harder, practically vacuum sealing Jr’s cock in her lips until…


“Nhhgg Daddy!!” Moaned Jr as he dumped his thick load into Bowser’s hungry snout. Her son’s thick stream of spunk was such a tasty treat and Bowser made sure to eat up every last drop; her boy could cum bucket loads. She was so proud and kept her lips sealed tight until Jr was finished dumping into his Daddy’s mouth.


Jr pulled his slimy cock out of Bowser’s drooling mouth, “Mmmmm, not bad Daddy, but get ready! There are a lot more of my subjects that want to use you.”


Bowser looked outside the room to see an excited line of various servants. They all eagerly awaited their turn to use Birdo-Bowser’s sissy-snout. Bowser squealed, cooing as she knelt in front of the line; excited to be the new Koopa-Castle cumdump.