*SLUUUUUURP*
*GURGLE... GLORP*
"Ahh... That's the last faggot down."
Gumball reclined on the couch. His gigantic cock winced and churned as the last outline began its journey down his shaft.
"I told you, dude," Darwin said, "cockmunching broodfaggots is the best!"
The two boys were both sporting massive dicks, each at full mast, and their balls were pushing back everything in the living room with their size. Inside were dozens of estrogenized omega and beta males from around the city, each slaves to their underaged masters, now enjoying their temporary residence as they writhed and melted into their greatest desire. Precum seeped from each of the boys' tips, their last cockmeals sliding down with ease. Their balls churned ferociously, hard at work turning the vast faggotmeal into ultravirile cub spunk. Gumball grabbed the game controller nearby, accompanied by the sound of his cock making an audible gulping noise.
"How 'bout we settle things?"
"You're on!"
The two nonchalantly began their game as their cocks and balls rumbled and vibrated hard enough to shake the ground. Neither were phased; they could see the TV just fine. Darwin's balls groaned and gurgled, the moans and gurgles dying out until all that was left was a plump, perfect oblate spheroid of a ballsack. 
"Mmph, fuck," Darwin moaned. "Those faggots tasted great."
"Awww, you're done already?" Gumball asked, mildly annoyed. "Jeez, my balls are so slow!"
"Oh, no way, dude. That means you get to savor your meal."
"Pff, I don't care about savoring these cheap-and-easy fags. I just wanna cum 'em back out so I can rape their broodholes again."
"Are you serious, bro? Churning these fags up into our alpha cum is the best part!~"
"My balls can make enough thick, sperm-y cum without any fagmeals... Pff, spermy."
Darwin's cock throbbed before he could shoot back. A thick glob of pre blew through the ceiling, his balls ballooning with every gurgle.
"Oh, crap!"
He pulled out a massive dildo from between the couch cushions.
"Wanna help me out, bro?"
Gumball paused the game.
"Faggots coming up too early?"
"Yup!"
Gumball took the thick, lukewarm dildo and slam-dunked it down Darwin's gaping piss-slit, causing the little fish's cock to swell tremendously in size.
"Hahhhhh," Darwin moaned, relieved."Thanks, dude."
"Don't mention it."
The boys tongue-kissed before Gumball sat back down, controller in hand.
"...Hey, you unpaused the game!"
"Heeheehee!~"
"Ok, it's rematch time! No way I'm gonna cum any of these omegas out until I beat you!"
"You're on, bro~"
Their balls grew, gurgled, and churned as the two gamed for hours, their circumference increasing with the intensity of their gaming.
"I'm gonna whoop you so hard," Gumball gloated, "that you're gonna cockbirth your broodfags early~"
"No way!" Darwin shot back. "When I beat you, I'm gonna cockfuck you and steal all your fagmeal~"
"Yeah right! I bet you haven't even digested yours yet~"
The two boys' session continued well into the night. Their balls let out increasingly louder rumbles as they kept lewdly half-insulting each other.
"Better break out the condoms," Darwin fired, "'cuz I'm gonna make you flood the town with your pre~"
"Not if I make you pre first!~" Gumball replied.
"Your broodfags won't even remember anything once they come back~ Mine will remember the best experience of their life being turned into my cum!~"
"Nuh-uh! When I cum out MY broodfags, they're gonna come back as sentient cum, and they're gonna remember everything~"
"Mine will, too, but more~ They're gonna remember sliding down my dick, going in my sack, they're gonna remember every second of being melted into my godking cum~"
"Mine, too! And they're gonna praise my alpha godliness while they tell me how much they loved being my cum!"
Mine tooooo!~"
The two brothers dropped their controllers and passionately tongue-kissed, their dicks and balls releasing planet-shaking rumbles and gurgles. Pre jettisoned from Gumball's skyscraper cock, flooding the streets and defacing every house, building, and public space. 
"Fuuuuuck!~" Gumball cried out. "I wish we were sharing that dildooooo!~"
Darwin giggled as he blasted out his dildo with a flood of pre equal to that of his brother's. The two splatted and splurted their thick, sperm-filled pre all across town, ruining decades of public cleanliness initiatives, without even leaving the comfort of their own couch. Their dicks pulsed, causing tremendous tremors across the world, while their balls shook the very foundations of the earth. The two sat back, entirely unphased.
"Guess we really gotta break out the condoms," Gumball quipped.
"Mmph, good idea," Darwin moaned, kissing Gumball on the cheek. "When these faggots come out, they won't give a shit about what the town looks like. They don't get any sunlight anyways~"
"No way~ They just sit in our basement all day and beg for our giant fucking alpha cocks~"
"Beg for our babies~"
"And our cum~"
"And our pre~"
"And our sperm~"
"Our rich fucking alpha kid sperm~"
"And when they're back in our basement, they're gonna wanna spend all day in our balls, too~"
"And that'll never happen, because they're omega faggots~ We give the orders and they take our cocks~"
"And our kids!~"
"Fuuuck, stop, you're gonna make me cuuuum~"
Gumball and Darwin concluded their horny venting with an intense, night-long makeout session, waiting for their harems to reform from the tips of their cocks.