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Come With Me

Summary:

A trip to America results in Joel in Mumbo's lap.
Twice.

Notes:

The author is a DID system who (usually) write about their experiences, this fic may be inaccurate to canon or "problematic", please refrain from leaving rude comments.

Written by Grian

Fellas is it weird to write a fic about (technically) your partner and (technically) your sibling fucking because everyone's been joking about it lately and you went "lowkey? adorable."

Chapter Text

"Joel!" Grian called, waving an arm in the air from across the building.

"Grian!" He smiled, rushing to meet his friends, "Hey guys!"

"How was the trip?" Pearl asks.

"As good as a plane trip can be," Joel chuckled awkwardly.

"Awesome, come on," Grian smiles, "Jim's waiting with the car,"

"Ohh," Joel nods.

"Mumbo too~!" Pearl sing-songs.

Joel wishes he could ignore the heat in his cheeks, "C-cool..." He manages to spit out.

"You are head over heals for him," Pearl taunts.

"Shut up! I am not!" Joel pushes her shoulder.

"Quit fighting!" Grian rolls his eyes.

Joel does his best to swallow away the burning feeling in his stomach as each step in the airport brings him closer to-

"Joel!" He blinks, finding himself face to face with...

"Jim!" Joel laughs, "Nice to see you didn't die on your trip,"

Jim chuckles, "I've been on a plane before,"

"I don't believe it," Joel shakes his head.

"Hey Joel," Joel's pretty sure his heart stops when he turns to the voice.

"Hey M-Mumbo!" Joel smiles the best he can. Mumbo doesn't say anything, Joel can't find anything in his mind to say. They stand too close, staring for too long. 

"Guys I... think we have a problem?" Pearl squeaks.

"Hm?" Mumbo turned to her.

"We don't have enough seats."

Grian glances into the car, counting the seats, "Huh. How hadn't I realised that?"

"And you called me dumb when I suggested I hang back!" Jim shouts, laughing.

"Okay, well..." Grian hums, "We'll have the smallest person sit in the tallest person's lap. Easy,"

Everyone glances around.

"Oh..." Mumbo murmurs.

Another glance about.

"Ohhh...." Joel groaned.

"Perfect!" Grian smiles, as if he's oblivious of his crimes, "Mumbo, are you comfortable with that?"

"J-Joel in my lap?" Mumbo stammers, "Yeah! Sure! I-Its whatever. It's not that long of a trip anyways,"

"It's a few hou-"

"Awesome!" Pearl shouts over Jimmy, "Thank you for your sacrifice,"

So, breathing as slowly as he can, they pile into the car and Joel gets situated in the most embarrassing situation of his life.

"You guys comfy?" Pearl asks.

"Shut it, Pearl," Joel glares.

"Sorry if I'm uncomfortable to- er- sit on," Mumbo says awkwardly.

"N-No, you're fine!" Joel says too quickly, face on fire. Thankfully a glance at Pearl silences her.

The trip doesn't go far before the car begins driving over uneven, curvy roads. Joel swears the car is vibrating as it shifts him around in the man's lap and- Oh.

Oh, no.

"Hey, G?" Mumbo says suddenly, "What's with these rough roads?"

"Sorry, that's just American roads for you," Grian chuckles, "It'll get less curvy in not too long. Just hold it together for now, 'kay, man?"

"Yeah-! Y-Yeah, that's... fine..." Mumbo's voice gets small.

Joel's stomach twists. The rumbling of the ground pressing them together, grinding Mumbo up into Joel. It wasn't long before Joel was hard too, knees shaking.

"Joel...?" Mumbo whispers suddenly.

"Mumbo?" Joel glances up.

"I- um..." Mumbo swallows, "Do you... want- erm... help?"

Joel's cheeks burn hot as the sun, and he glances at Pearl, who's half asleep and scrolling through her phone. Jim and Grian are in the front, deep in an argument about something.

"I'll be careful," Mumbo reassures, hand hesitantly on Joel's thigh.

"Fine, go ahead," Joel murmurs.

"Uh-" Mumbo pauses, "Are you... sure? Y-you don't sound very...eh... enthusiastic?"

Joel's stomach swirls, "N-No, I..." he breathes hotly, embarassment filling him, "Please, Mumbo, touch me."

Mumbo lets out a deep breath, slowly running a large hand over Joel's clothed crotch, making him writhe and lean back into Mumbo.

"Stay quiet," Mumbo whispers as he wraps his whole hand around Joel's trousers. His heart races as it hits him just how much bigger Mumbo is in every way. Every part of his skin burns, yearns for Mumbo's touch. Anything Mumbo'll give him. 

"Please- M-more." Joel begs pathetically.

Mumbo smiles softly, glancing around the car before he pushes a hand into Joel's trousers, wrapping fingers around Joel's cock and sliding them smoothly up and down, delicate. Joel breathed hot and fast.

"Shh..." Mumbo whispers, head burried in Joel's shoulder. It doesn't do much as Joel whines and whimpers, and Mumbo, in a quick panicked movement, holds a hand over Joel's face, watching Joel's eyes roll back.

"Fuck- so good. So pretty..." Mumbo whispers, hands speeding up, nibbling on Joel's shoulder.

Mumbo felt him tense up, and a warm sticky sensation covers his hand. As Joel pants, he's vaguely aware of Mumbo's hand moving to his own mouth, he's also vaguely aware of the lack of something pressing into his backside.

It's not long before they're asked, "Who's okay with sharing a room?"

Joel doesn't even try to hide his blush when Mumbo requests to room with him.