In the far regions of Orre, a region filled with crime, criminals and corruption in this desert landscape. There are certain Pokemon that have closed their hearts and minds in inhumane experimentation known as Shadow Pokemon. 
The government in various regions of Kanto, Johto, Hoenn, Sinnoh, Unova, Galar and Paldea have organized a special task force to combat against the threat and using their knowledge of purification, hope to save these Pokemon and apprehend the organization responsible. They were known as, Shadow Hunters.
Two agents of Paldea were sent, a brother duo which are a Meowscarada and Floragato. The two feline Pokemon were sent on a scouting mission, searching for a research facility and hoping to find information and destroy it.
They were in Phenac City, planning their strategy. Of course, not all of Orre is bad, there are a couple of safe havens around. The two Pokemon were wearing some revealing gear that resembled a ninja outfit.
"Listen Clover, if things get bad. Run away and call for backup. Our reinforcements will arrive and surely overwhelm the security." The Meowscarada named Sage says to his brother.
"I know. Same to you. I don't want anything to happen to you." The Floragato says, after getting some supplies and getting some rest, the two went on their mission. The duo had a plan, Clover would distract some members outside while Sage will infiltrate the facility and provide an entry for his brother.
The two gave each other a quick hug and nod at each other. Then, they went to work. Clover and Sage found a laboratory guarded by some grunts and Clover uses his flower bomb to provide a distraction. Sage then sneaks inside and finds some way to disable security.
Inside, Sage found a computer and managed to disable the cameras and alarms so he and Clover could investigate. "We're good!" He called. Allowing Clover to enter safely.
"Nice job!" Said Clover. "C'mon, there's gotta be a vault or something with evidence of where these things came from."
Nodding, Sage and Clover went deeper into the facility. As they did so, they couldn't help but wonder where everyone was. Aside from those goons outside, the place completely void of any other Pokemon. Let alone Shadows.
The two brothers reached a door with a sign on it reading 'For high authority only! KEEP OUT!' This was probably what they were looking for.
"Jackpot." Clover smirked before turning the handle. Once the door was open, however, a pink mist covered the unsuspecting Floragato.
"Clover!" Gasped Sage as he prepared himself to fight whoever was on the other side. To his surprise, when the mist cleared, nobody was there. Was it rigged? More importantly, what was it rigged with?
When it was safe to pass, Sage ran up to his fallen brother. "Clover? Clover, are you okay!?" He panicked. Sage was about to call in for backup when he heard Clover's voice.
"I'm fine, Sage." He reassured. "It just took me by surprise, that's all."
Sage breathed a sigh of relief. Thank Arceus he was alright! Although… What Clover said next worried him a little.
"Say… Were you always this cute~?" He asked as he got back up onto his feet.
"I'm… Sorry, what??" Sage replied in shock. Did Clover… Just tell him he was cute? No, he had to be imagining things, right?
Then, Sage put it together. He really should have expected this. There's was no way this organization didn't have some traps to distract them. Sage put his paws on his brother's shoulders.
"Clover, listen to me. That mist must be some sort of aphrodisiac or drug. I'll contact backup and they can handle this. We've done our job so it's time to pull back." Sage says seriously, trying to get his brother to see reason.
"What? But Sage, I feel fine. Better than fine! I feel... great~ And... you're so beautiful...~" Clover says and blushes a little.
From anyone else, Sage would find that flattering, from his drugged up brother? It was... weird. They needed to leave now before they're caught.
"Clover, snap out of it! Our mission's done, so let's just go back before we're caught!" The Meowscarada says, he mentally curses himself for not checking the traps earlier.
In response, Clover cupped his brother's cheek. "What are you-?" Sage began, but was cut off when he suddenly kissed him tongue and all!
'What the fuck!?' He thought. 'We're brothers; we can't just… Oh~'
Slowly, Sage was getting into it, as well. Was it another effect of that weird pink mist? He doesn't know, and right now? He doesn't care~ Sage began kissing back while their tongues danced in their mouths. Moaning ever so slightly as they did so.
Eventually, the two Pokemon pulled away for air. "Holy shit~" Sage breathed. "You're a good kisser!~"
Clover smiled and blushed. "Thank you~" He replied.
Sage took Clover by the hand. "Let's head somewhere safer; the other agents can wait~" He said. Clover smirked lewdly in response. That said, they quickly got out like no one even knew they were there.
[…]
Not too far from the facility, Sage and Clover found an oasis with a small hut. Despite it being abandoned, the bed seemed to be in decent shape. And that's all that mattered~
After Sage closed the door, he felt Clover slap his ass. "Ah!" He gasped. "Getting right into it, huh?"
Clover shrugged. "Can you really blame me?" He asked playfully. "Now then… Show me what you've got~"
Sage got on his knees and starts rubbing his brother's crotch, who groans softly until his balls and erection appeared. He cupped Clover's balls with one paw, while stroking his cock with the other. He knew morally this was wrong, downright taboo. But... fuck, this was so hot~
Sage didn't know if the mist could be transferred or he was just making an excuse for a quick fuck. He didn't care right now. They're job was done for the day.
"How's it feel, Clover?" Sage asked the Floragato who gave out a purr, and staring lustfully at his older brother.
"Mmmhh... amazing~ I-I want more than your paws, Sage...~" Clover says, panting a little.
"Oh? Getting right to the point? Such a needy brother you are~" Sage teases and smiles. He then takes off his mask, realizing they would be here for a while. He looked like an older Sprigatito without the mask. "Arceus, I'm so shameless... taking advantage of you like this. I hope you can forgive me."
"Mmmm... I don't care. I still love you, Sage~" Clover replies and couldn't contain his excitement, his heart pounding over what lewd acts they could do. "It'll wear off... for now, let's go crazy~"
Winking at his brother, Sage gave Clover's shaft a slow and sensual lick. Causing him to moan. "Mmf! Fuck yeah~" He breathed. Damn, he was good at this right from the jump! Had he done this before? Or was it yet another effect? Meh! Who gives a damn? This felt too good!
Sage licked again. Then again. And finally, he engulfed Clover's cock. Sending him over the edge. "A-Aaah!" He groaned. "Mmn~ Suck me off, Sage!"
Sage purred from the praise and began bobbing his head up and down his brother's dick. All while Clover was moaning and groaning like crazy. Damn, this was incredible! Screw masturbation, this was a thousand times better!
Down below, Sage was started to gain an erection of his own. He reached down and began masturbating while he sucked Clover off. Of course, Clover noticed this and chuckled. "You're so naughty, Sage~" He breathed before grabbing the sides of his head and started thrusting down his throat.
While he was surprised at the sudden forcefulness, Sage took it. He wanted this. Nay, NEEDED it! He needed the Floragato's cum!
Sage just groans, feeling the abuse on his throat, tasting Clover's cock thrusting into him. Sage closes his eyes, enjoying the feeling from his brother.
Clover moans, facefucking the Meowscarada, almost like he needed this. He was panting and moaning, moving his hips while staring at the other Pokemon with a mixture of lust and admiration.
"Hahhh... f-fuck... You're so cute big brother...~ I... I always wanted to do this...!~" The Floragato confesses, causing Sage to open one eye and stare at him. "I-I always looked up to you... I-I'm sorry I fell for a basic trap...!"
'No, no... don't blame yourself.' Sage thinks to himself, placing a paw on the Floragato's hip and rubs it, reassuring him. 'Now... gimme that cum, little brother~'
Taking this as a sign of everything being okay, Clover goes faster, Sage's nose right up to his brother's crotch, inhaling the musky scent with every thrust, gurgling as he squeezes his eyes shut.
"Oh fuck, I'm gonna cum!" Clover moaned as he began leaking pre.
'Yes~ Cum in me!' Sage begged in his mind. 'I need your cum inside of me~!'
And with a few more hard thrusts, Clover practically howled in ecstasy as he came down his brother's throat. Sage tasted Clover's warm cum; it was absolutely wonderful~ When he finished, Clover let go and allowed Sage to pull away and breathe.
"Phaa… Hah… So yummy~" Sage breathed. Clover smiled at this and helped him back up. That's when he noticed his erection.
"How would you like to stick that inside me~?" Clover whispered into Sage's ear. In response, Sage shuddered in excitement.
"I'd love that~" He replied. Sage watched his Floragato brother get onto the bed and shake his plump ass in his direction.
"Go on, dear brother~ Fuck my ass hard!" Clover begged. Smirking at his brother's lewdness, Sage got onto the bed as well and began hotdogging his cock in-between his cheeks. "Please… Stick it in me!"
"Well, since you asked for it... why not?~" Sage said playfully, and shoves his cock inside of Clover's asshole, making both Pokemon moan. "Oohhh, fuck... so tight!~" He then began to move his hips, thrusting inside his brother.
"Ooohh, fuck!~ That's it, Sage!~ Fuck your little brother's fat ass!~" Clover moans out, sounding like a real slut, but he doesn't care.
"Hmm... I wonder. Did you wanna do this, even before the gas?" The Meowscarada asks him, and see's his brother blushing. "You fucking slut. I knew it~ Well, mist or no mist, not gonna waste this chance~"
"Oh, hell yes...!~ Please, don't show any mercy. Punish your whore of a brother!~" Clover says, really getting into it, even moving his hips in time with his older brother's movements, adding more pleasure.
Sage kept slamming into his slutty brother. His asscheeks bouncing and jiggling all the while. In the heat of the moment, Sage gave Clover's ass a harsh slap. "Mmf!" He grunted in pleasure. "How naughty~ Keep going!"
Save winked at his younger brother and went harder and deeper. The tip of his cock hitting Clover's prostate a couple of times. Slowly, hearts began forming in the Meowscarada's eyes. "A-Aaaahn~" He moaned girlishly. "This is so fucking good! I love you, Sage!"
"I love you too, Clover~" Sage replied before leaking pre. "I'm so close…! You want your big brother's cum in your slutty ass!?"
Clover nodded vigorously. "I do! I need it badly!" He begged and pleaded. "FILL ME!!"
That's exactly what he wanted to hear! So, with one last thrust, both Pokemon moaned loudly as Sage filled Clover was his seed. The pleasure being so much, Clover came onto the bedsheets while his stomach bloated from the sheer amount of cum that was poured into him.
When his orgasm was finished, Sage pulled out and stained his brother's fat ass with the rest of his cum. "Haaah~" Sage sighed. "So good…!"
"Hah… Hah… I agree~" Clover replied. "Say, Sage…?"
"Yes, Clover~?" Sage asked teasingly. Knowing good and well what his question was going to be.
"Can I… Fuck you, too?" Clover asked. In response, Sage got on to his hands and knees. Giving him silent permission.
With that, the Floragato grabs his brother's waist and shoves his dick inside, making his older brother moan loudly, his body shuddering.
"Ooohh!~ Oh, fuck, Clover!~ Mmmh... n-no wonder you enjoy it~" Sage says, and gives a nod. Clover began moving his hips, thrusting into the Meowscarada. The sound of his cheeks jiggling upon contact with every movement.
"Ohhhh... Oh, Arceus Almighty...!~ I don't care if this is the mist or my horniness...! I fucking love your ass, big brother!~" Clover moans shamelessly, all Sage could do was grip the sheets tightly and moan like the little bitch he is.
"Hahh!~ Hhanh!~ C-Clover... Clover!~ Pl-please... more...!~ You're cock's so good...!~ Oh fuck...!~" Sage lets out a groan, his own cock twitching, Clover notices this and gives his brother's shaft a tug, teasing him, eliciting a whine.
"You like that? Do you like having your brother's big cock inside of your tight boy pussy~?" Asked Clover before spanking him.
"AHN!" Sage gasped. "I do! Your cock is the best brother ever!"
'I'm your only brother, but whatever~' Clover snarked in his mind before going even harder. "Fuck yeah! Your ass is so tight; I love it and you!~"
Sage shuddered and purred at the praise. It seemed he had a praise kink. Although, Clover wouldn't lie: He had it, too~ "Mmn~ Clover~! I love you, Clover!!" Sage groaned loudly as he felt his ass getting slapped. His cheeks becoming redder with every spank.

"I love you too, Sage~" Clover moaned back. "Oh Arceus, yes! I'm so close!"
Sage looked back. "Cum in me, dear brother! Don't pull out!" He begged. Well, if he asked for it, so be it!
With one last thrust, Clover moaned loudly as he came deep inside of Sage who, in turn, came as well. Both Pokemon felt like they were on Cloud 9 during this moment in time~
"Aaaahn~" Sage moaned loudly before he vomited up some leftover cum. "BLAARGH!"
Clover pulled out and stained his brother's ass with the remainder of his cum. "S-Sorry, Clover… I couldn't keep it down…" Sage apologized.
"No worries, Sage~" Clover replied as he and Sage got up. "We should probably head back to the base, though."
"Right, right." Sage agreed. "Say, we should do this again sometime~"
Clover embraced his brother who hugged back. "That's a great idea, Sage~" He breathed. "I'd love that~"
[…]
Long after their time inside the hut. A couple of weeks passed by and the mist was gone out of Clover's system. But that didn't stop the two to continue their sexual activities. Far from it. They were inside a city in an alleyway. Sage pinned his brother against the wall, legs hugging around his waist as they went at it again.
"Hahh... ahh... c-couldn't wait until AFTER we're done patrolling, Clover?" The Meowscarada mutters to the Floragato, who just had a smug smile on his face.
"Don't lie, big brother. You wanted to tap my ass again~" He teases and lets out a moan, hugging the Pokemon and letting Sage take control.
"Mmm. True. This'll be quick. Fuck, I can't get enough of your ass~ You're so damn cute~" Sage whispers and kisses his brother on the lips, tongue and all.
They're relationship changed after that, but of course, they kept it under wraps. But whenever they had free time or out in the field, they would indulge themselves in some sinful fun~
All that could be heard in the alleyway, if people paid attention, was the moans of two brothers and members of the Shadow Hunters.
THE END