Work Text:
If Vash doesn’t get off the phone right now, Knives is going to kill him.
Alright, he’s not actually going to kill him. Knives loves his brother more than anything. He’s just tired, cranky and full of eggs. He hasn’t slept well the past few days and it’s all catching up with him now. Vash is supposed to be helping him but he’s spent most of the time on his phone and Knives is about ready to start screaming.
Knives throws his head back as another wave of pain washes over him. The cramps in his stomach are getting worse so he knows it’s not gonna be much longer. He thought he was going to have longer. When he got up that morning he felt fine, then a few hours later it came on so fast he couldn’t get up from the couch. That’s where he’s stuck now, watching his brother take another fucking work call.
Knives is grateful his brother stayed home with him today. He really is. Vash knew that Knives’s eggs were coming soon and called out of work. Then they had some kind of emergency this morning and Vash has been on the phone on and off for over an hour.
Knives groans and rests a hand on his swollen stomach. As quickly as things are moving, it’s not fast enough. Knives is ready to get these things out of him. Vash looks over at him with a guilty look on his face.
“Yeah, yeah,” Vash says to whoever is on the other line. “Let me know if that doesn’t work, but I have to go.”
Vash taps the phone to disconnect the call and walks back over to where Knives is lying on the couch, kneeling in front of him.
“Sorry,” Vash says. “I know I said I’d help.”
“I’m ready for this to be done,” Knives grumbles.
“I’m sorry,” Vash says, sympathetically. He runs a hand gently up and down Knives’s swollen belly. It’s soothing. “You’re almost there.”
“Wish they were your eggs,” Knives says. This process would be a lot easier if he knew he was laying his brother’s eggs. He could put up with it if these were their children.
“You know I would fertilize your eggs if I could,” Vash tells him.
Knives knows he shouldn’t have brought it up because it’s something his brother is genuinely upset by. They’d both love if Vash could put a baby in him, but they’re just missing some of the necessary parts for that. He’s sure they’ll have kids somehow, someday, just not today.
“Sorry,” Knives says.
“You don’t need to apologize,” Vash says quickly. “It’s okay.”
“Thank you for helping me,” Knives says, wearily.
“Of course,” Vash says, stroking his brother’s hair. “Besides, you’ll do the same for me in a few weeks.”
Knives smiles at him. Then Vash’s phone goes off again and Knives stops smiling.
“Sorry,” Vash says, getting up again. “I’ll be quick. I promise.”
Knives sighs and Vash puts the phone up to his ear.
“This had better be important,” Vash says as he walks away.
Knives stares up at the ceiling. He’s been dealing with this for most of his life. It’s never fun but his brother is almost always there with him. He’s not sure how he would do on his own.
He can hear Vash snapping at whoever he’s on the phone with. Vash is always so gentle and polite with his employees so Knives can tell that he’s stressed. Knives doesn’t know what’s going on at work and he doesn’t care, but he really hopes this will be the last phone call. If not, he might lose it.
Knives moans as his stomach cramps again. It’s definitely not going to be long now. By the time it passes, Vash is back by his side again. He puts his phone down on the coffee table.
“I’m not going to answer the phone again,” Vash assures him. Knives isn’t confident that’s true but he decides to believe it for now.
“Hurts,” Knives says through gritted teeth.
“I’m sorry,” Vash says. “I can distract you from the pain for a minute.”
Vash brings a hand between Knives’s legs and rubs at his clit. Knives gasps. It feels nice. He probably won’t cum, but the pleasure is temporarily overriding the pain in his brain.
“Wish you could fuck me right now,” Knives says.
“No you don’t,” Vash laughs. “Not right now. But I will later. I promise.”
That promise Knives knows Vash will follow through on. His brother loves watching him lay eggs. Maybe it’s some kind of animal instinct. Even though they both know the eggs aren’t Vash’s, it makes his brother feel possessive. It’s good because whatever Knives’s hormones are going through alway make him desperate for his brother after.
Vash keeps toying with his clit and Knives think that he might actually cum from it. It may actually overpower the rest of the awful sensations going on throughout his body. That would be nice. It’s easier when his body is more relaxed. His eyes are closed and some of the tension is easing out of his muscles.
Then Vash’s phone rings again and Knives’s eyes fly open. He stares at Vash who freezes with his hand halfway to his phone.
“If you answer that phone again,” Knives says. “I’m going to break it.”
Vash glances at Knives, then his phone, then back at Knives.
“And then I’m going to break your hand,” Knives adds.
Vash lets his hand drop.
“If it’s important, they’ll call back,” Vash says. Knives is about to respond when his stomach suddenly cramps again.
“I think it’s time,” Knives grunts.
Vash grabs one of Knives’s hands with both of his. Knives grips it tightly.
“You can do it,” Vash says gently. “You just need to push. Don’t forget to breathe.”
Knives screws his eyes shut and takes a deep breath. It hurts but it’s a hurt he’s used to. His body knows what to do so Knives barely has to think about it. He groans as the first egg makes its way slowly out of him.
“You’re doing so well,” Vash says, encouragingly. “You’re almost there.”
Knives keeps pushing until he feels the large egg fall out onto the towel underneath him. He takes a break for a moment, panting. He’s still way too full so he knows he isn’t done but he needs to catch his breath.
“More?” Vash asks. Knives nods. “Okay.”
Then Knives feels the pressure and knows he needs to push again. He squeezes his brother’s hand as he forces another egg out of him. It’s not as bad. The first one is always the worst. Not that it’s fun of course. He whines as the second egg joins the first.
“Still not done,” Knives says, voice strained.
“Alright,” Vash says. “I’m right here. You can do it.”
This one takes a little longer. Knives gets a brief reprieve. Vash holds his hand and strokes his hair while he waits. Knives thinks he might have been wrong and that he was finished when the familiar pressure returns. He grabs his brother’s hand again as he pushes.
“Good,” Vash says. “You’re doing so good.”
This one is bigger. He can feel it stretching him open even further. Sometimes the eggs feel like they’re too big and they’ll never come out, but he has to trust that his body knows what it’s doing.
There are tears in his eyes when the last egg finally drops to the couch. Vash leans over and presses a kiss to his temple.
“Was that it?” Vash asks. Knives nods weakly.
Vash crawls to the end of the couch to grab the eggs. He moves them somewhere out of the way. They can deal with them later.
“Three this time,” Vash says, sounding impressed. “You did so well.”
“Will you fuck me now?” Knives asks but his voice betrays how exhausted he is.
“Soon,” Vash tells him. “How about you rest first?”
Knives begrudgingly agrees. Vash lifts him up off the couch and carries him to their room. Vash looks long and lanky but he’s actually quite strong. He can easily handle his brother’s not insignificant weight.
Vash lowers Knives down onto the bed.
“Sleep,” Vash says. “I’ll be back.”
Before Knives can protest he feels his eyes drooping shut and he drifts into unconsciousness.
Knives isn’t sure how much time has passed when he wakes up. He sits up and rubs his eyes. He feels so much lighter now. He looks up to find his brother sitting on the edge of the bed waiting for him.
“Good morning, sleeping beauty,” Vash says, cheerily.
“Were you waiting for me to wake up?” Knives asks.
“I promised I’d fuck you,” Vash says and Knives feels his heart pound. God, yes.
Vash crawls up to the head of the bed and kisses him. Knives eagerly kisses him back. He tangles his fingers in his brother’s hair, desperate to pull Vash in as close as he can.
“I don’t know how you can do this right after,” Vash laughs when Knives pulls back to take a breath. “I don’t wanna touch anyone for days.”
“Are you complaining?” Knives asks.
“God no,” Vash tells him and brings their lips back together. After a few minutes, he pulls off of Knives’s mouth. “Can I eat you out? Or are you still too sensitive?”
“Please,” Knives says, not caring how desperate he sounds.
Vash’s face is immediately between his brother’s legs. Knives can feel his brother’s tongue running along his folds and around his clit. Vash is being a little more gentle than usual. Knives wants to complain but he is still a little sore and the easy pace feels nice.
Vash eases a finger carefully into him. It’s still sensitive there but after shoving three eggs out of his pussy, the stretch doesn’t bother him. He can feel his hips bucking up into his brother’s mouth, trying to get more stimulation.
“Is that good?” Vash asks, breath hot against his brother’s cunt.
“Shit, yes,” Knives groans. He grabs onto the sheets. “I’m so close.”
Vash seems to take that as a challenge because he sucks hard on Knives’s clit and Knives cums almost immediately. He cries out and his hips jerk forward as he cums. Vash sits back up and lets Knives catch his breath.
“Was that good?” Vash asks.
“I told you to fuck me,” Knives reminds him.
“I was hoping you would say that,” Vash says, grinning.
Vash gets up to look through the drawer of their nightstand. Knives realizes his brother is already wearing his harness. Vash pulls out one of their toys and joins Knives on the bed again.
Knives watches him slide the toy into the harness. It’s one of the smaller ones and made of glass. Knives wants to argue for his brother to pick a bigger toy and really wreck him but he knows logically that it’s a bad idea right now. He trusts Vash to pick out the right one.
“You ready?” Vash asks, positioning his cock at Knives’s entrance.
“Yes,” Knives moans. “Please fuck me.”
Vash eases slowly into him. Knives rolls up his hips to meet him, desperate to get his brother inside him as soon as possible. Once Vash is totally inside, he stops.
“God, Nai,” Vash says. “You’re so beautiful like this.”
Knives’s face flushes. He whines and covers his eyes with his elbow. His brother can be so sentimental. Knives loves it but it’s also a little overwhelming. He feels embarrassed to have his brother’s full, undivided attention.
“Don’t be bashful,” Vash teases him.
“Come on,” Knives says, rolling his hips up again. Vash laughs but takes the hint.
Vash’s cock feels so good inside him. This toy is more firm than some of the others and Knives loves the feeling of clenching around it. Knives whines as his brother pounds into him.
“Gonna fill you up,” Vash tells him. “Gonna fill you with eggs that are all mine. You’ll get full and round with our children.”
Knives moans.
“You like that?” Vash asks. “You want me to make you a mother?”
“Please,” Knives gasps. He’s so wet. Normally Vash will insist on some lube right after Knives lays eggs, but Knives is soaking. The squelching sounds of Vash’s cock forcing it’s way into his pussy fill the room.
“Think you can cum again?” Vash asks.
“I… I dunno,” Knives pants.
“Let’s find out,” Vash says. He reaches a hand down to rub at Knives’s clit again. Knives whines and clenches around his brother’s cock. “Good boy.”
After everything that’s happened so far today, Knives knows he isn’t going to last much longer.
“Vash,” Knives gasps. His brother realizes what he’s trying to say and picks up the pace.
“Go on,” Vash says. “Cum for me.”
That pushes Knives over the edge and he cums again, hard, on his brother’s cock.
Vash slows his thrusts until eventually stopping altogether. He eases out of his brother and scoots back. Knives watches him take off the harness and drop it off the side of the bed. That’s fine. They can clean it later.
“Don’t you want to get off?” Knives asks as Vash crawls up to lie with him at the head of the bed.
“Later,” Vash says. “I want to lie with you right now.”
Knives wants to argue but he’s exhausted. He rests his cheek against his brother’s chest, feeling it slowly rise and fall. He’s almost asleep again when Vash’s phone goes off. Knives glances over at where Vash has left it on the nightstand.
“Are you gonna get that?” Knives asks.
“Nope,” Vash says, wrapping his arm around his brother. “They can leave a message.”