So Lance wasn't going totally insane when he said that there was something weird going on with Keith lately. NEW weird, even, which Lance was started to get a little bit… concerned by.

It started out with little things. Sneaky little tidbits Lance couldn't manage to string together til much later, so small and innocuous they seemed as they came. Like, how the same day they got back to the castle after their vacation, Keith broke out into another heat spell. Which, what were they at, a week and a half, two weeks tops? That hadn't been all that strange a few years ago when they were teenagers, but like. They were kind of adults now? They'd been married for three years and knew how to handle Keith's body and the thing WAS here… Keith wasn't really supposed to break out in heat spells at all when he was human. Keith tended to spend as much of his estrus as possible in human form for that very reason; he really only broke out in heat again when he spent a couple days in a row as Galra, or had the poor timing to get randy on Lance in that shape. So, in order to go into heat that DAY, he'd have had to immediately drop his human shape the second he got back to space and also gotten himself turned on, by himself, somehow. But, you know, whatever. They handled it. They had experience now; they could wrap the whole thing up and get Keith back to normal in about four hours, excluding the obligatory recovery nap afterwards.

But to tell the truth, Keith hadn't returned to human form at all since then. Which, considering he had spent nineteen straight years like that, it was generally the shape he felt more comfortable in. So suddenly deciding it was 'itchy' and that he needed to spend all his time purple instead was… a little unprecedented, to say the least. It was true that being Galra had advantages in like, missions and combat situations since that body was more durable, but… Like. He was in heat, though. There was no way it was actually more convenient, right?

And… boy, was he ever in heat. The first day, of course, was an actual heat spell the kind they had been dealing with for years. Which logically should have given them a bare minimum of a full week before this shit was due to happen again, right? Well, it turns out, no. Not right. That was not right and Keith's body had ceased to make any sense whatsoever.

Okay, how did Lance even begin to explain this... Well for one thing, there was that first time they had what was supposed to be normal sex since their vacation. So to start, having two heat spells so close together usually wiped both of them out. So considering they had just come back from vacation, just banged like freight trains, and were just about to go out for a mission the next day, Lance had sort of expected them not to have sex again until they came back. Or if they did, it would at least be… you know. More conservative? Like, of their energy, at the very least.

Nope. Nope, instead Keith got weird. And 'weird' wasn't exactly easy to hit for two people who had STARTED at drugged up alien disaster sex. Well, okay, when Lance thought of it like that it was actually all pretty vanilla, nevermind. No wonder he hadn't thought it was so weird at first. Just…. Out of the usual pace of things.

So there they were, in their room after hours, getting in a bit of that whoopie. And Lance was taking Keith from behind on their bed, as was wont to happen from time, nice and slow and hard to enjoy the tight stretch of Keith's wet Galran pussy.

And it had been good, too. Watching Keith's cute peachy ass bouncing as he worked himself backwards with hot little grunts of pleasure every time he sunk down onto Lance's cock. He never would get tired of that; no matter how many hours he spent watching his dick spear into the worn-out stretch of Keith's asshole, it was still the sexiest conceivable thing in the universe. Wait, no - Keith's face when he came, THAT was the sexiest thing in the universe. But this was probably second.

So they'd been going at it like that for a while, Lance pressed in nice and deep so that the clenching inner rings of Keith's Galran cunt were just elastic enough to stretch out with his retreating cock instead of letting it through. And he could admit he'd been teasing a little, but come on, if he didn't take charge and make them go slow sometimes it would never happen at all. Keith of course, was doing his level best to fuck himself raw on his husband's dick, so before he'd really even decided to Lance was putting one hand on the small of Keith's back and the other on his hip to still the frantic bounce of his ass and take control of the pace. "Slow down, Honey," Lance teased in a low murmur. "You're gonna wear yourself out, riding my dick that hard."

"Come on, Lance," Keith grunted cutely. "Don't want it slow, I wanna get fucked."

Lance chuckled, rocking into Keith at the same steady pace. "You always say that. Just relax for me for a little while, okay?"

"And you always wanna go slow," Keith panted, annoyance in his voice drowned out by that sweet whiny tone he got during sex. He tried to fight against Lance's hands to work their hips into a faster pace. "Come on, damn it. I want you to give it to me hard."

He couldn't resist the urge to play with Keith a little, just because it was so obvious he was desperate for it and he just made it so easy to tease him. "Be good for me and maybe you can earn it, Sweetheart," Lance cooed, sliding his hand from Keith's lower back up the line of his quivering spine, over the defined firmness of his swordsman's shoulder muscles and all the way up to hold the back of his neck in a firm grip. "Now hold still and let me take care of that pussy for you."

Keith shuddered with a throaty moan, stilling into obedience for the length of… oh, fifteen seconds or so? And then of course he was back to twitching and trying to pull back against Lance to increase the friction, and that was just not going to do now was it?

If Keith wasn't gonna hold still, Lance wouldn't hold him down. Instead, he drew back the hand he'd planted on Keith's hip into a windup before landing a hard, broad-palmed smack right to Keith's ass. Keith yelped, cunt pulsating around Lance's cock in a hard throb that had both of them choking on the pleasure. Lance leaned down to press against Keith's back, whispering into his ear, "You gonna be good for me, or am I gonna have to spank you again?"

The noise that came out of Keith at that was so pathetically sexy for a second it almost sounded fake. But then that same broken whine came out again, this time in the words: "I'll be good! I'll be good for you Daddy, just please, please fuck me."

And holy fucking shit. Even if it had been fake Lance had no time not notice, far too preoccupied by how hot that had just made him and already fucking hard into Keith again, pounding his cock into that throbbing wet heat despite his own intentions to take things slow. It didn't matter - somehow that had been what got Keith to actually listen to him anyway, obediently biting into his pillow in his efforts to restrain his body from trying to rock back greedily.

Keith really was his cutest when he was desperate to get fucked, huh? Lance fucking loved it. He was sitting up again, slowing his hips enough to get back into a steady rhythm without actually being any gentler, pulling completely out of only that third ring to punch back in hard with every thrust. Keith's whole body jolted with the effort to hold still on every strike past that sensitive muscle, and at some point Lance had sat up again because he'd been watching the way Keith's lovely violet booty jiggled on contact for a while now.

Slightly entranced by the sight because he may or may not have licked some of the aphroditic slick off Keith's thighs earlier and gotten himself a teeny bit sex-high, Lance grabbed himself a fistful, playing with Keith's pretty ass just for the sake of the feel of having his hands full of soft flesh. Lance kneaded his fingers into Keith's plump ass while he fucked into him, teasing and pulling his pretty cheeks like putty before letting go with just enough of a flick of his wrist to watch the resulting bounce.

Oooh, he liked that. Only bit of fat Keith had on his whole body, had to be that lovely ass of his. Ahh, and he'd been so good, too, hadn't he? Still as he could hold that eager body, hips up and face down and thirsty for cock… Lance should reward him, huh? Grinning to himself, Lance slapped Keith's ass again, eyes locked on the wiggle of stricken-red flesh and ears open to the loud and obvious cry of pleasure torn from Keith's throat. Keith was up on his arms again in a solid push, round ass colliding with Lance's pelvis as he moaned out, "More!"

Did he mean more spanking or more dicking? Whatever, Lance could do both. He struck Keith's ass again, grunting at the instant vice-like clench around his cock he got in reaction and fucking Keith with more force. "Oh god yes," Keith was panting, once again moving back against Lance but at this point it was too good for either of them to care that he'd stopped listening. "Like that! Harder Daddy, fuck me harder!"

Fucking shiiiiiit. Lance couldn't have stopped himself from complying if he'd wanted to, ramming into Keith hard enough to hear the wet slap of the slick that had dripped down to soak their thighs on every thrust. "Jesus christ babe, you can't keep saying shit like that," Lance laughed breathlessly, trying to fight off the telling tightening of his own groin. "You're gonna make me spill my load before I can even get you come at all."

Keith just shuddered, twitching everywhere from his toes to his cunt. "Yes," he sighed in between harsh pants of breath, "Yeah do that. Wanna feel it."

Lance groaned, an unconcious "Fuck," yanked out of him just as the head of his cock slammed against the deepest, hardest-to reach ring at the depth of Keith's cunt. "You like that? Is that what woud get you off for me, to feel me come inside you?"

"Oh god yes! " Keith was shaking, and Lance wished he could see his face right now but - well, Keith never said dirty shit like this when he knew Lance could actually see him, some weird self-conscious thing, so this would have to do because jesus jiminy quiznack did Lance ever need to hear more of this shit. Even when Keith was into it enough to start screaming shit, he'd never called Lance 'Daddy' before or said anything like - "Fill me up, want you to fuck me deep and fill me up with your come!"

Lance complied pretty much on the spot, because holy fucking shit what was that even?! Bowing over Keith's back with a shudder and loud curse Lance finished hard, shooting off a spill of semen right into the depths of Keith's pussy and feeling it pulse around him with Keith's own orgasm as his immediate reward.

They collapsed into the bed in a sweaty heap, Lance landing hard on Keith's back when his arms finally gave out for good and stifling a satisfied chuckle into the fountain of Keith's hair splashed over their pillow. Actually, which side of the bed was this? Keith's pillow. They'd just fucked on Keith's side of the bed. And Lance was probably going to need to come back to reality soon.

He peeled himself off of his husband, carefully pulling out with a soft, "Nonono wait," from Keith that went noticed too late.

"Hm?" Lance hummed into his shoulder, sliding out of Keith's well-loved ass. "Not done yet?" That was okay. He lived to serve, after all. Lance was instantly replacing his softened cock with his fingers, sliding two inside of Keith in an easy glide.

"Wha? No," Keith's words were cut off into a groan when Lance's blunt fingers slipped inside. "That's not what I - ahhhh!" Lance shoved his fingers in deep and curled them just a bit, catching the rim of his already overstimulated first internal pussy-ring and running firm fingertips all around the circumference in a slow hard press. Keith was shaking and coming again almost instantly, and Lance grinned against his shoulder because fuck yeah, Lance knew how to get his man off right.

"Better?" Lance kissed his shoulder, drawing out his fingers slowly enough to pull a thin string of their mixed release with them for nearly two inches before it beaded off to spill onto the bed.

A low grunt snorted out of Keith's throat that Lance took as a good sign, shifting to the side a bit to get comfortable and wrapping his arm around his husband's back to snuggle. "We should really clean up in the bathroom before we both fall asleep."

"Shut up," Keith groaned unsexily. "You're ruining my afterglow."

And you know what actually, none of this sex stuff even had that much to do with anything anyway. Lance was overanalyzing the sex because he liked thinking about sex with Keith. Only barely relevant in retrospect. Where things DID start to get weird - like really truly weird, was the mission the next day.

So they finally set down on this planet Allura'd been trying to get them to for a while now, some nice-ass place that the Galra let stay relatively unoccupied in return for being shipped shitloads of this plant that grew here, because it turns out gardening is more work than the Galran Empire cares to partake in. So obviously they'd come to try to convince them to, you know, stop supporting the Galra, and in return Voltron would protect them from the inevitable backlash.

Obviously, the local Lamuellans were a little resistant to suddenly giving up this pretty sweet neutrality thing they were rocking and would need some convincing. But, they were also pretty easygoing and no one seemed to mind the small cadre of alien warriors suddenly hanging around, which Lance appreciated. Not everyone was cool like that.

They looked, compared to most of the other species they met wandering around space, a lot like humans. Their skin was kind of fishlike and their faces were kind of catlike and their limbs sort of ended up ape-like, but, you know. It was really the facial expressions that mattered anyway. And like, they wore clothes and everything. Lance loved societies with clothes, even weird ones. Ninety-nine percent of the time it meant they had bedsheets, too.

Anyway, there they were in town, talking to the highest-ranking person they could find in hopes of being directed to the next highest person. Which, in a classy civilization like this with its nice stone-paved roads, you wouldn't THINK there'd be so much red tape and rigamarole, but. Bureaucracy, man. Universal.

Now, it used to be that when it came to meeting the big-wigs Allura and Shiro would take charge as the Head of Voltron and Princess of All of Them. But nowsabout last year or so, Allura had married Hunk, so now they were more like Queen and King of Everyone Around the Castle, which sort of meant if Hunk wasn't around someone would probably have a question to ask about it, so some variation of the three of them were in charge of diplomacy. Naturally, this left Keith and Lance with shit for shit to do either way, and they were free to take care of whatever business they had. Which usually involved, at least on Keith's part, skulking around suspiciously trying to decide where a potential attack was most likely to come from. For Lance's part, his people-watching was more anthropological, because knowing absolutely nothing about the culture and customs of the place you planned on spending the next few days was generally a shitpot of an idea. Between the two of them they were pretty good at keeping everyone out of trouble, proving once again as always that Lance and Keith were a perfect team.

Which is where things started going wonky. Because today, Keith wasn't doing his cute little paranoid part in their system. Well, he did at first, scoping out the town looking for some signs of a secret military that most probably did not exist, but…

Okay, so the first thing you needed to know about Lamuellens was that they were all about openness. No doors locked, people joked but didn't lie outright, and no one bothered to keep anything a secret. Oddly enough, the most obvious manifestation of this unique trait was that they let their kids run around everywhere . Why not? Nothing bad was gonna happen, and there were always people around to watch out for them. If any child had any question about anything they could ask the nearest adult and bam! They learned a lesson from an elder, because you can bet that kid got an honest answer. Of course, the more predictable result was the general lack of tact, but in Lance's opinion a little bit of TMI was worth it for a people to actually know everything about how their own government worked.

And Keith seemed fascinated by this. Not the culture itself - lying was actually not a trait that pervaded 100% of sentient species, and these weren't the first people they'd encountered baffled by the concept. What Keith was interested in was all of the children.

Lance assumed it was because they'd just gotten back from his mom's house, where they'd been swamped in kids for a week straight. Hilariously, what Keith hadn't gotten used to was the fact that he HAD gotten used to kids - he seemed to always expect them to dislike him, and was only just starting to accept the fact that he was actually good with them. Lance figured he was probably testing this theory to see if he got on with kids other than his in-laws, so his first reaction to seeing Keith crouched down in a kneel to answer a Lamuellan girl's answers with a soft smile was, you know, to melt in affection because Keith was adorable and amazing.

Like, seriously, Keith was just the greatest, and Lance was so pathetic over him. Had watched him grow from an antisocial outcast desperate to find himself all the way into a capable man with comrades and a universe to protect, and had fallen more and more in love with him the entire time. Five years now they'd been in space, and how long had it taken Lance to fall for him in the first place? Like, a couple of months, tops? Shit, he could even still pinpoint when.

Shiro had just disappeared and Keith had been so lost and so miserable, and Lance had promised himself that the two of them got along now and that he'd be nice about this whole 'I want you to lead Voltron' thing but he was just too much of an ass, ended up getting mad and needling at Keith until the poor strung out bastard just broke . And it had been then, watching the tears well in Keith's eyes even through his shouting and realizing that Lance had just made him cry… For some reason, that was it. Lance was gone right there; from that moment up unto the rest of eternity forward, Lance knew he would do anything to protect Keith from ever needing to cry again. Which, alright, hadn't been love yet, but. Whatever it only took like a week of actual dating before Lance was totally head over heels anyway, all he needed to see was that soft look on Keith's face just after a kiss and he was lost . He could fall in love with that look over and over again a thousand times.

Keith was wearing a different kind of face right now with the girl but it was still just as gentle, smiling at her as he kneeled down with an elbow on one knee to meet her height as she chattered excitedly. Oh man, it just wasn't fair. Keith had to stop doing this and being all… Looking like that! Lance had shit to do, damn it, he didn't have time to stare at Keith all day. Keith with a kid no less, being all cute and domestic and shit. Lance's weakness right there, man (2.). It was bad enough watching him with Lance's own real family for a week, if Keith started getting all sweet on alien kids now too Lance didn't know how he'd be able to handle it. His rough-edged impersonable bared blade of a husband, smiling all sweetly and playing with kids? Deadly. Deadly to his health.

Had Lance been thinking about something? Other than how gay he was? Oh yeah, oh yeah, that's right. It hadn't just been that one instance, you see? For pretty much the whole trip any time a kid under a certain size or so got near Keith he'd turn into a kitten; if he couldn't go interact with them directly he'd grab onto Lance's arm and kind of… sigh a little. It was nuts, man. Mainly because of the sighing, obviously, but also because of how many friggin babies Lamuella had. What were these people's lifespans, that they needed to reproduce this much? Or was Lance really just that used to cultures that hid their kids away inside that this place would stand out?

No, it was probably because of Keith that he noticed. Lance liked kids, adored them even, but he wasn't swooning every time one was too close by. Or actively trying to sniff them. And usually Keith wasn't either.

Getting back to the castle and away from the Lamuellans hadn't helped either. As soon as they were home Keith had been all kinds of on top of Lance, draping himself over his husband and purring loudly, even skipping over his important evening training in favor of staying wrapped around Lance like a koala straight jacket.

And yeah, Keith nuzzling his face into Lance's neck and tickling him with long black hair was one of Lance's favorite sensations in all of spacetime, but… He kinda only did that right after sex usually. Or, when he was like, in heat heat but they couldn't get enough time alone to take care of it. And he had never, ever climbed onto Lance's lap to rub up on him in the middle of dinner with everyone - and Lance meant everyone everyone here, all the stray people the ship had been picking up over the years like the Holts and Slav and some Balmerans and that one Arusian Keith made friends with. Like, a little bit of affection was normal around just the other paladins but… Like, what the fuck even, with this one.

By day two - which, days here were short, but it was still a significant handful of hours later - it wasn't just Lance who noticed. Not the Lamuellans of course, who seemed perfectly content to hand Keith their babies with no question, but instead all of the people who knew Keith. Knew, loved, and were worried for, because behaviors that had started out as just odd soon became outright problematic.

It wasn't anything with the kids. The problem was one that had not come up since about the first five minutes they dated, and Lance thought would not ever be an issue again but okay nevermind on THAT one.

So like Lance said it was the next day, and everyone was back up in the Lamuellan city in their capitol building, waiting for the upcoming meeting with their governor in shortly here that afternoon. So they didn't have time to do anything much other than wandering around the building making small talk with people, you know, connecting to the masses on an individual basis or whatever. Lance just thought of it as making friends, but that was apparently part of diplomacy? So. Okay, that worked.

He and this prettyish sort of young lady delivering some files were caught in a conversation, chatting about the kinds of plants that grew locally. Hunk was still in charge running the greenhouse like always but Lance ended up being the only one determined enough to learn anything about medicine, and you never know what kind of funky fauna were actually full of miraculous medical potential. Space diseases were crazy scary shit, man. Had to do whatever he could to head that shit off.

So they had been talking for a while and Lance suspects there problem was about when his legs got tired from standing around all day, because he leaned one shoulder against the wall. And yes he could admit that the body language there was definitely a bit flirty, and the maiden may have perhaps caught onto that and rather leaned into him a little on the pretense of hearing him better, and Lance was an honest man and would even go so far as to say he had been complimenting her just a bit more than necessary throughout the conversation, but! The thing about being married was, security and commitment!

So, Keith had literally seen things exactly like this before, and had just rolled his eyes because when it came to girls sometimes Lance actually could not help himself. Generally speaking, Keith did not give much of a shit if Lance accidentally flirted with girls from time to time, especially if it was two feet away from his own husband.

This was, apparently, not a 'general' sort of occasion.

Keith was suddenly behind the girl, slamming one hand against the wall at her back hard enough to draw the attention of half the hall they were in. "Excuse me," he growled - and Lance meant that so very literally here, there was a rumble and everything. Lance was too stunned to do much other than notice that the poor girl instantly looked terrified just from Keith's sudden and forceful appearance, so he really didn't need to continue with, "But if you could maybe back the hell off of my man?!"

Lance's jaw dropped. This might have been hot if it had been some appropriate kind of situation like a terrible fiend hitting on him in the middle of a fight, but this was just some poor damned secretary in a shitty government job.

Lance caught her shoulder just as she was turning around to run away, stopping her with a quickly barked out, "Nope! Nope, just excuse him, he did not mean to be so rude, and I am so terribly sorry if my husband startled you, he is not crazy I promise."

Feline eyes darted back to Keith worriedly, but Shiro had also been in the foyer with them and was bringing up the rear to place a placating hand on Keith's shoulder and gently drag him away. "You'll have to forgive him, miss, it's his species mating season so he's a bit hormonal."

Keith turned to snap at Shiro like a broken mousetrap. "Hormonal ?!"

"Aaaaahhh, I see," the girl said, calming down a bit as Shiro delicately placed himself between her and Keith. "My apologies, your husband is quite charming, and I didn't even think to inquire if he was mated." She smiled, directing it straight at Keith. "May your union be blessed with healthy and good-tempered offspring."

All three of them down to Shiro blushed at that, Keith finally having the decency to look embarrassed. "Um, we're not... I mean... Thanks." A pause. "Sorry for snapping at you." Which, understatement much? But an apology was an apology, so fuck it, Lance wasn't gonna get into it.

What she had said though… Hm. It didn't really mean anything, right? Like obviously she had said it because 'mating season' was, you know, all about having kids on a fundamental basis. It was natural to assume they'd be trying to conceive. Didn't actually mean they would. Hell, Lance still wasn't a hundred percent convinced Keith even could get pregnant!

Still… If Lance had to pick a way to describe Keith over the past few days… Nah. It was just the hormones - Galra weren't supposed to keep going into heat spells as often as Keith did, Lance already knew his body chemistry could get all fucked up sometimes from being a hybrid species. This was probably that, just the estrus getting to his head a little, right?

Waaaaay to his head, even, Lance amended as soon as they got back to the castle. It wasn't even night yet, it was still that afternoon for chirssake, and Keith was pulling Lance into their room and shoving him onto the bed, biting a possessive kiss into his mouth before he even knew what was happening.

"Um," Lance started hesitantly, letting Keith claw at the back of his black paladin jumpsuit into peel it off. "Are you, uh, feeling okay, Honey? You've been acting a little bit…" He sucked in a gasp of air at the bite at his throat. "...Crazy today."

Keith grunted around the mouthful of Lance's neck in his teeth. "Bite me, too. I want everyone to know that you're mine."

And Lance was slightly more worried at that, but mostly he was erect. It was Keith, okay?! He could not help how easily this guy turned him on. Not even Lance's fault, it was just an irresistible biological reaction here.

And then, uh… Yeah. As soon as Keith got his dick out he climbed on top of it, wetter than should be reasonable and bouncing so hard on Lance's lap the bed rattled against the dressing drawers it was mounted on top of.

Sometime in the minutes after Keith had gut-punched an orgasm out of him they were lying in bed, half clothed and bite-bruised with a ton of things they still needed to do today. And Keith, arms wrapped around Lance's neck and lying directly on top of him like a lumpy purple blanket, was purring loudly in contentment.

"Like being sat on by a panther," he mumbled dazedly, earning a soft questioning hum from his half-asleep husband.

"S'nothing, Dear," Lance assured him.

And it really wasn't right? Just a bit of hormones. There was no way Keith was actually trying to get pregnant.

(2.) Once Lance had come down to the kitchens to find Keith covered in flour and determinedly stirring a cake batter for Hunk's upcoming birthday, and had then proceeded to bust a nut on the spot. If he'd been wearing an apron, Lance would have had a coronary and died.

Notes:

AN: Uh… The rest of the story is going to have more gross kinks randomly thrown in, btw, if you're um. In opposition to such perversions, as it were. For example, my story These Little Piggies also takes place in this timeline before Hot Like Magenta, so if you know what THAT one's about… Yeah. I'm allll about the self-indulgence.