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“Move over, fatass. ‘Else I’m gonna fall of the bed, and that means you will, too.”
Biff huffs and ignores his brother. He won’t move, he tells himself. Especially after Chip called him a fatass. He always knew how to get to Biff.
“Didn’t you hear me? I said—“
“I heard you, Chip,” Biff sighs, finally moving closer to the middle of the bed.
Chip grunts and he turns his head away.
Biff frowns to himself. Why did his brother have to be so grumpy with him? He wished they could get along all the time.
He pushes the thoughts away; the last thing he needs is for Chip to find out what he’s thinking of. They are conjoined, after all, and even if they don’t share a brain, they can still feel what the other’s thinking of, though their telepathic abilites were sort of lousy, as they had found out.
“Biff... you know one of us can’t fall asleep if the other doesn’t,” Chip mutters.
“I can’t.”
Chip turns around to face Biff. He’s lying down, head on the pillow, whilst Biff is slightly sitting up. Well, as much as he can, without being pulled down by Chip.
Suddenly, Chip pinches Biff’s left hip and Biff yelps.
“Go to sleep,” Chip says.
“I told you — I can’t!”
Chip sighs loudly. "Is something wrong?" he asks.
Biff’s back begins to burn. “What do you mean?”
“Look, man, I’ve seen you naked all my life. If you gotta jerk off, you can do it here and now. I won’t squawk,” Chip says casually with a huff.
Biff bites his lip as he realizes what Chip meant.
He really doesn’t need to.
And even if him and Chip masturbated together countless times, Biff would never want to do it alone in front of his brother. He’d feel too exposed, which is kind of a stupid thing to feel, sharing a body and all, but he didn’t really care.
“You doing it or not?”
“No. I don’t need to," Biff mumbles, his voice quiet.
“Whatever you say,” Chip shrugs, “but gimme a warning if you do decide to.”
Biff nods, and even in the dark he can see Chip’s face, full of suspicion. But his brother stays silent.
Biff slides down and puts his head comfortably on the pillow, sighing.
He can faintly feel Chip’s breath on his forehead, and it makes Biff squirm uncomfortably.
To Biff’s dismay, Chip’s eyes shoot open as soon as he moves slightly.
“Trust me on this, Biff, you’ll never be able to fall asleep with an erection. Seriously, man. If you want, I can shut off,” Chip says.
Well, shit.
With all this talk, now Biff really had started to develop a hard-on, and it wasn’t getting better. In fact, the opposite.
Chip groans in frustration. “If you don’t do it, I’ll do it for you,” he grumbles, pissed off.
Biff stills. “You wouldn’t,” he says scrunches his nose in disbelief.
“Watch me saw us in half if it means I’ll get to sleep,” Chip retorts, “will ‘ya let me do it? Since it doesn't seem like you will anytime soon.”
Biff bites his lip again, entertaining the idea.
“Fine.”
“Oh, finally," Chip says, shoving off the covers just below their hips.
Biff’s heart thuds loudly in his chest, and he’s thankful that they lock the door before going to sleep.
Chip’s unexpected hand moves to rest on top of Biff’s boxers, too soon.
Biff almost jumps, shuddering as he shuts his eyes.
Chip squeezes Biff’s cock through the fabric and then puts his hand inside them.
Biff whines softly, pushing his hips upwards slightly as his brother begins to jack him off, pumping his hand fast. He clenches his jaws and leans his head back, letting out small huffs as Chip continues.
Biff opens his eyes and looks back at Chip, who's watching him, face flushed and tired, probably from his sleepiness. Chip’s eyebrows are furrow and he averts his gaze shyly as soon as Biff looks at him.
As he realizes he’s been holding his breath, Biff as he exhales, a small groan of pleasure slipping by. His cheeks burn, but he figures that Chip hadn’t heard him.
“For fuck’s sake—“ Chip gasps.
“Wha- What’s wrong?” Biff whimpers softly, barely able to speak.
“Now I’m hard, too,” Chip grunts.
“It’s- You can-“ Biff is interrupted by his unexpected orgasm, “fuck!”
As Biff moans, Chip lets out a small, shaky grunt, and keeps moving his hand for a while before finally stopping.
Biff is panting. He figures this was the best orgasm he’d ever had. As he hears Chip begin to masturbate, and he opens his eyes slightly. Carefully, he moves his hand to Chip’s, and places it over his.
Chip looks at him with a confused expression, but moves his hand away.
Biff smiles softly and begins to squeeze his cock, moving his hand up and down slowly.
Unlike Biff, Chip feels more comfortable around his twin. He moans, pressing his hand to his mouth so nobody could hear them.
Biff feels his own dick twitch inside his underwear, and it soon becomes hard again.
Biff moves his hand faster and faster, also reaching down and stroking Chip’s balls.
“Fuck, Biff, keep going- so close-“
Biff moves his hand faster until it begins to ache, and then his twin’s dick twitches in his hand and spurts thick liquid on his hand. Chip huffs shortly again, his leg muscles twitching and his tensed body relaxing.
“Oh god, Biff. You’re so good...”
Biff bites his lip, but gathers the courage to move his right arm on top and over Chip’s stomach, pulling him in.
He presses his nose against Chip’s shoulder and looks at him.
Chip smiles at him gently. He wishes he was brave enough to kiss Biff; just a little peck, but he doesn’t. He chickens out and sighs, letting his shoulder fall lax against the mattress.
Chip snorts a laugh.
“What’s so funny?” Biff asks, frowning.
“I can feel your boner on my thigh,” Chip laughs softly, so he wouldn’t be heard behind the door. He rests his head in his palm as he looks closer at Biff, “damn, was I really that hot that you got hard twice?”
“No- it’s just- I’m-," he frowns, "shit happens, alright?” He stumbles in his words, embarrassed, "it's not that deep."
“Whatever, man, but if I jack you off again, I’ll get hard by the time you cum. So it’ll last forever.”
“We could start it together, though,” Biff says quietly, almost to himself.
“Hm. Sounds good.”
Chip pumps his dick a few times to get hard and stops when he’s ready.
“You wanna do it to each other again?” he asks.
Biff shrugs, “sure, why not?”
Chip nods.
They move until they’re as close to each other as possible, until their chests are almost pressed together.
They begin to jack each other off at the same time, same pace. Chip is letting out soft grunts, and with each of Biff’s moans, his dick twitches in his conjoined twin’s hand.
After a while, they both cum at the same time and are left panting and wheezing, overwhelmed.
“We should do this more often,” Chip says.
“We can do it in the shower...” Biff suggests quietly.
Chip grins at him.
“Perfect.”