In the kingdom of the Dark Lands, Bowser Junior was practicing with his magic. True, he relies on the magic paintbrush that he got/stole from some scientist or whatever, but the classic wand is always the next best thing. Kamek had been teaching him, like the rest of his family, the arts of magic just in case their physical strength isn't enough.
But lately, he's grown bored. He borrowed a couple of spell books from his study and looked over them. Some of the basic spells he's already known. But one catches his eye. It was some sort of youth spell. That could prove useful, not only to keep up your strength and longevity, but also for a good prank~
Without a second thought, he knows just who to use the spell on. He memorizes the magic spell and goes over the throne room. Bowser was overlooking his plans once again, while Junior behind a pillar, giggling to himself.
"Presto chango, become youthful!" Junior whispered the incantation and aimed the wand at his father, before Bowser even realizes what happened, the spell hit its mark.
"Wha? What was that?" Bowser says and looks around, and he finds himself... shrinking? "Wait, what?! What the hell's going on?!"
Not only that, his voice was starting to sound younger to, until he was at the same age as Junior. And Junior himself was surprised, he didn't expect Bowser's younger self to look exactly like him! He couldn't help but let out a laugh, which of course, gathered his father's attention.
"JUNIOR! SHOW YOURSELF!" He shouted, his once deep voice didn't carry as much weight when he was like this. Even then, Junior knew when he was busted. He steps out of his hiding spot as Bowser crosses his arms and tried to look angry, but to his son, he looked like was pouting.
"H-hi Papa... surprise?" Junior said awkwardly as his father just stared at him. "Okay, so I was bored and found this really cool spell and I thought; 'Hey! Why not use it on Papa?' And boom!"
"Boom is right. How long did you put this spell on for anyways, son?" Bowser asked, looking over at himself. And Junior blanked. Oh shit, he knew he forgot something. He started to sweat a little which the younger Bowser noticed and narrowed his eyes. "Junior... you did put a TIME LIMIT on this, right???"
"... Uhmm... o-oops?" Junior stuttered out and saw steam coming out of Bowser's nose and he started to panic. "W-wait, wait, wait! Papa, maybe Uncle Kamek can fix this! He knows everything! B-besides you of course! Eehehe... eheh... I'm grounded aren't I."
"Oh, you better believe it!" Bowser exclaimed. "When I get back to normal, you're in for it, young man!"
Now Junior was in full-blown panic mode. He didn't want to get grounded for something like THIS! God, what if anyone outside the Dark Lands found out about this?! He'd be screwed! Royally screwed! "D-Don't worry, Papa!" He pleaded. "I-I can fix this!"
Bowser rushed towards Junior and tried to take the wand from him. "Give it to me! Now!" Bowser argued.
"I said I can fix this!" Junior begged as he refused to hand the wand over. "Just believe me!"
"You're not fixing anything! GIVE IT HERE!" Bowser roared.
In the intense moment, the wand exited their grasps and flew up into the air while starting to glow bright pink. They both knew another spell was about to be cast, but which one?
When the wand hit the floor, a pink beam of magic hit Bowser and surrounded his body. "Wh-What the-?!" He gasped. "Junior what did you do!?"
"I-I didn't do anything this time, Papa!" He responded. What was the spell gonna do? He was afraid to find out… Just as soon as it started, the pink light faded and Bowser landed on his feet looking completely disheveled. "A-Are you okay, Papa?!"
There was silence for a moment, and Bowser stared at Junior. However, it wasn't anger this time. It seemed like... he was actually eying Junior.
"Papa...? Are you okay?" Junior asked, he has no idea what that spell was or if it even did anything. He didn't even mean to go this far!
"I'm fine, Junior. I think that spell did do something to me. Can you check to see if I'm okay?" Bowser says, and something seemed odd about this. But Junior was already in trouble anyway so he nodded.
He approached his father and looked nervous. From what he could tell, nothing even harmed him, so he wondered why he needed to check on Bowser.
"Papa... I don't see anything wro-" He was stopped when he felt his father cupping his cheek and giving him a lustful stare. "P-Papa...? Papa what's going on...???"
"My, what a beautiful son I have~" Bowser said in a, for lack of better words, seductive tone.
Without warning, Bowser began kissing Junior on the lips. Even darting his tongue into his mouth. Junior's eyes widened at his father's sudden forcefulness. 'Wh-What the hell!?' He thought before pulling away. "What happened to you, Papa?!"
Bowser giggled lewdly. Actually giggled. "Magic happened, that's what~" He breathed before looking downwards. "My, someone's excited, hehe~"
Junior looked down as well and gasped. He had an erection. Why was he erect? This was wrong; they were family, not lovers! Junior gasped and covered his shame. "Y-You can't do that!" He panicked. "I'm you son!"
Bowser giggled again. "I don't care~ Love is love, right?" He asked before getting down on his knees and wrapping his hand around Junior's cock. "You're so big~"
Junior shuddered and moaned. He desperately wished that he never even delved into this magic business in the first place! However, his thoughts were cut off as Bowser began licking the tip of his penis. "A-Ah!" He groaned. "Papa~"
"See? You do like this~ You know... we could be twins~" Bowser jokes and takes the cock inside of his mouth, swirling his tongue as Junior groans.
"Nnhg! P-Papa... n-no... your... your too good...!" Junior gasps out, and blushes once he realized what he just said. Did he actually enjoy this? He has love and idolized his father, but... this was actually wrong! This was taboo! This was... wait, holy shit. Bowser was actually pretty skilled at this. "Hahhh...~ O-oh shit..."
Bowser smiles, hearing his son's moans and bobs his head. He reaches around and gropes Junior's ass, feeling them nice and plump. He then moves his hand and starts fingering his son's anus, making him yelp.
"Aahn!~ P-Papa...! I... Oh, God...!~" Junior squirms a bit and then moves his hips, thrusting inside Bowser's mouth and hearing him groan. The Koopa Prince gripped his neckerchief tightly and started gasping and moaning.
'Oh God, Papa... I'm so sorry! But this feels amazing!~' He thought and closes his eyes. He had never felt this much pleasure before.
'That's it, Junior~' Bowser thought. 'Facefuck me hard; show no mercy!'
On and on it went before Junior made his announcement. "I-I'm so close, Papa!~" He groaned before finally blowing his load. "Aaagh! Take it, Papa!!"
Bowser, while surprised, just gulped down his son's cum. It tasted oh so good~ In fact, there was so much, his stomach even bloating a bit. When it was over, Bowser pulled away and panted. "Phaa… Hah… So yummy~"
'Whoa~ I just came in my Papa's mouth!' Junior thought. He wouldn't lie, that was fun! All signs of nervousness was out the window, and he certainly wants to do more!
"I bet you want more, doncha, Papa~?" Asked Junior.
Bowser nodded vigorously. "Of course, I do!" He replied. Ready for whatever was about to happen next.
Junior leaned in and whispered into Bowser's ear. "Show me that ass of your's~" He breathed. Bowser shuddered in excitement and leaned up against a pillar and shook his plump ass in his son's direction.
'Hell yeah!' Junior thought before he began hotdogging his dick in-between bowser’s cheeks. After a short while, Bowser let out a low whine.
"P-Please! Stick in me!" He begged. Junior smirked at this. Who knew the King of the Koopas could act like a slut when put in the right circumstances?
"How bad do you want it~?" Junior teased before slapping his father's ass. Determined to milk this bit dry for what it's worth.
Bowser whimpered from the slap, his ass cheeks jiggling from it, as he moves his hips, trying to insert Junior's cock inside of him.
"God, I want it so bad!~ Just lemme have that dick, son!" Bowser begged him, not even caring how degrading it was. At this point, he doesn't give a shit.
Junior couldn't help but giggle at that and hugs him close. "Once I'm done, you can use my ass~" He says, making Bowser shudder. With that in mind, he finally shoves his cock inside his father and groans.
"Oohh!~ Fuck yes...!~ Pound me son! Pound your femboy father!~ Gimme that dick!!~" Bowser moans loudly, his cheeks tinted red as he felt Junior thrusting into him. The sounds of their moans and flesh against flesh could be heard in the throne room.
"Aahh...!~ Oh yeah, baby...!~ I'm fucking my Papa's boy pussy!~ That's what this is now!~" Junior says and chuckles, hearing his younger version of his Father's slutty moans.
'Holy shit, not only does he look like me, he sounds like me too! Maybe Papa wasn't that far off... it's kinda hot~' Junior thought, the similarities were striking. But right now, he was focused on claiming Bowser's ass for himself.
In the heat of the moment, Bowser began jerking himself off. Seeing this, Junior moved Bowser's hand out of the way and began jerking him off himself. "Mmn… How does that feel, Papa~?" He asked.
Bowser's eyes rolled back and his tongue flopped out of his mouth. "Aaaaahn~ This is so fucking good, Junior!!" He moaned loudly. Not giving a single fuck if they were caught.
Junior chuckled before slapping Bowser's ass again. This one being so hard, a bright red print was marked on his cheek. "Mmgh!" Bowser grunted in pleasure. "Oh, fuck yeah~ I… I love having my son's huge cock in my fat ass!"
This went on for quite some time before Bowser made his announcement. "I-I'm so close…!" He groaned.
"That's it, Papa~ Cum for me! I'm getting close, too~" Junior replied as he began leaking pre.
Junior sped up, thrusting into Bowser harder and faster. Both Koopa males were moaning in ecstasy. Bowser could feel his son's cock hitting his prostate making him shoot strands of cum.
"Aah!~ Hhah!~ Oh, fuck, I'm cumming!!~ I'm CUMMING!!!~" Bowser moans loudly, finally spraying his load all over the floor and pillar. They'll have to clean the mess up. Later though.
Junior gave one last thrust and cums inside, filling Bowser up with his semen.
"Aaaahhh!~ Fuck yeah!!~ Take my cum, Papa!~ Take my cum you fucking bitch!!~" Junior says, the words just slipping out. After a couple of shots, he pulls out and watches as some of his cum leaked out of Bowser's abused ass. "Oh, God...~ That was awesome... Welp, a deal's a deal!"
Junior led Bowser back to his throne and had him sit down, his younger father's cock still hard. The Koopa Prince climbed on top of him, his anus hovering over Bowser's cock.
"Mmmm... I want you to fuck me nice and hard Papa. Don't stop until I drain you~" Junior says, giving a toothy grin. His father treated this like some challenge and grabbed his son's waist, before shoving him down on his cock, making Junior squeal with pleasure. "Aaah!~ Fuck yeah!!~"
"Aaagh! Fuck yeees~" Bowser groaned before thrusting as hard as he could into Junior's tight ass. His cheeks bouncing and jiggling with every thrust.
"Mmmnf~ Papa's cock~!" Junior moaned as he felt his father's dick inside of him. Holy shit, this was heavenly~ He felt so stupid for never casting this spell! Whatever it was, that is…
Junior reached down and began jerking himself off while he and Bowser moaned and groaned louder than ever. "Fuuuck~ This is so fucking good!!" Junior groaned. "I love you, Papa!~"
Bowser chuckled. "I love you too, Junior~" He replied and moaned. "God, your ass is so good~"
Hearing this, Junior hugged Bowser tightly and began kissing him again. He could taste a bit of his cum as he darted his tongue into his Papa's mouth, but he didn't mind whatsoever~
After breaking off the kiss for some air, Bowser began speeding up, making Junior's eyes roll back and tongue sticking out.
"Oooghh!~ Fuck yesss!~ Right there, Papa!~ You're dick in my ass feels so amazing!~ The best ever!~ Don't stop! Please!~" Junior moans out, and lets his father take control this time.
"Seems I'm not the only one who's a slut for dick~ Like father like son!~" Bowser chuckles and grunts, hitting Junior's prostate as the Koopa Prince let out a spurt of cum, staining his father's chest. "Seems like I hit a good spot~"
"Ooohhhh, God!~ K-keep going! Fucking wreck me!!~ PLEASE!!!~" Junior shouted with need, before he was pulled into another kiss, the two of them moaning.
'Head... fuzzy... n-need... Papa... Papa is... everything~' The Koopa Prince thought lewdly, his mind getting hazy. Maybe he can hold off on breaking this spell. Much later. When he feels like it.
While they were still kissing, Bowser came deep inside of Junior's ass. The pleasure being so much, Junior blew his load as well. Staining his Papa's chest and getting some on the throne. The two male Koopas let out muffled moans of ecstasy as this all happened, and when it was over, they broke the kiss as Bowser pulled out.
"Hah… Hah… Papa's cum~" Junior panted. "So fucking good~!"
Bowser chuckled at how much Junior was into it. It was hard to believe that he wasn't just a moment ago! "I agree, Junior!" Bowser replied. "Say, I just remembered that there's a fix to all this."
Junior looked disappointed. "Does this mean we can't do this anymore?" He asked sadly. Bowser laughed and shook his head no.
"We can do this anytime you'd like." He explained. "The spell can be faster whenever, after all~"
Junior was so happy. This prank of his surely turned into something that could benefit the both of them~ With all that said and done, Bowser and Junior fell fast asleep in the throne. Exhausted from their lewd activity.
[…]
Some time has passed since then. Junior has since learned how to use the spell properly anytime they wanted. Of course, without telling anybody. Bowser and Junior's relationship has also changed. They've become closer than ever.
Inside Bowser's bedroom, the two were engaged in a 69 position, sucking each other's dicks, again, Bowser transformed to match Junior's age. They also did this normally, but the spell added a lot more fun to this dynamic~
They soon came at each other's mouths and swallowed their loads. They soon hugged each other and sloppily made out. And they would do these kinds of acts, again and again and again...~
THE END