Work Text
It really had been a while, huh? A while since the creators of this world and all of the worlds decided that they needed eachother's help.Since the Frisk of another place (where they were all total weenies) somehow managed to convince the humans of this world to NOT wage a second war against monsters.Since a few monsters from here actually MOVED to other places. A while since the different universes connected. Red was no longer fazed by seeing an alternate version of himself walking around, waving at him. Red... Blue, Ink, Classic, Butch, Stars...They were kinda forced to use these stupid nicknames, since literally all of these guys were also "Sans", they did try to call eachother their actual names once but it VERY quickly became confusing. Truth be told, it was still kinda weird, but one thing he could boast about was the fact that the vast majority of these guys were shorter than him (apart from Butch, the Sans from Horrortale. This absolutely MASSIVE motherfucker. How was he so big?? Wasn't his universe's whole shtick that they were starving?!) All while avoiding said Butch, Red enjoyed teasing the others for being shorter than him. Especially... Blue.Aka Blueberry Sans, Aka Underswap Sans. Ah yes. One thing about this guy is that he's too self-absorbed to realise when you're insulting him, which is hilarious.The second thing is that he's even shorter than the majority. The top of this little blue runt's head barely reached the level of Red's chest! But alas, he did kinda have to be nice to him, for his brother and Blue's brother were close friends. This friendship sure gave Red and Blue plenty of time to interact, their respective Papyruses abandoning them in the house while they ran off doing god knows what,but that meant nothing.Red and Blue were NOT friends. No matter how much Blue was pestering him, calling him his friend or proposing different high-energy activities to "bond". Yeugh... But even tho he was tiny, and annoying, and a tad hyper, Red did find him a bit cute. Kinda like how people find pugs cute.They're ugly, but they're cute. One day, while Edge and Honey (Red's Papyrus and Blue's Papyrus) were out of the house, Red was just waking up. He went down the stairs, planning on eating whatever he found in the fridge that didn't need to be cooked. But instead, he found Blue in the kitchen, cooking. Oh. Great. He was making more of those tacos that tasted like bits of cardboard soaked in motor oil in construction paper shells. 《- GOOD MORNING, SLEEPYHEAD! EVEN THO IT'S LUNCH TIME! Chirped Blue.- i see you stole ingredients from our fridge, runt. Flatly replied Red.- I DIDN'T STOLE THEM. Said Blue, a bit offended. I ASKED EDGE'S PERMISSION, AND HE ALLOWED ME TO USE THEM FOR COOKING! He didn't say anything about the "runt" part. Because technically speaking, it is not an insult, it's a term that describes a smaller-than-average pup or littermate, which he factually was.Though he still didn't like being called that. - ANYWAY, ARE YOU HUNGRY? I MADE TACOS!- yup. saw 'em. not interested. you know i hate 'em. Red proceeded to grab the whipped cream can, and promptly left the kitchen, pouring cream into his mouth. - HEY! I PUT A LOT OF EFFORT INTO THESE! Called out Blue.- don't care. Called back Red. Okay now he'd done it!Blue angrily stomped out of the kitchen and stationed himself in front of Red as he was walking to the stairs. - dude. move, before i crush you.- NO. It was hard to take Blue seriously in a situation like that: imagine a short dude with chubby cheeks and big blue eyes stare up at you with an angy expression.He was about as intimidating as a kitten. Red could easily shove him out of the way. But he was curious as to what Blue thought he could do, so he played along. - oh man, and here i wanted to go upstairs, too bad such a strong and powerful foe is blocking the way. He said, with sarcasm so blantant, even Blue noticed it.- RED. I KNOW YOU DON'T TAKE ME SERIOUSLY. BUT I NEED TO SAY IT.I AM TIRED OF TRYING! I'M TIRED OF TRYING DAY AND NIGHT TO MAKE YOU MY FRIEND, TO MAKE YOU HAPPY, ONLY FOR YOU TO THROW BACK MY AFFECTION IN MY FACE LIKE A TODDLER WITH A PLATE OF FOOD.WHAT IS IT?? WHAT IS YOUR PROBLEM?? Wow okay... that was a pretty genuine anger... but like... he was still too small and cute to be intimidating. Red bent down so his head was at the same level as Blue's. - ...A. i don't wanna be your friend. and B. You look like a baby throwing a fit.now scooch over so i can get back to my ro- Quickly, Blue wrapped his arms around Red. - dude! i don't want a hug either! But-Without warning, the shorter skeleton effortlessly picked up his larger counterpart. - whOAH! S-since when could you do that??- SINCE FOREVER, BUT I'VE BEEN PLAYING NICE!NOW, LISTEN TO ME.WE'RE GONNA DO AN ACTIVITY OF YOUR CHOICE, APART FROM ROTTING IN BED OR BINGE-EATING, AND WE'RE GONNA HAVE FUN, AND WE'RE GONNA BOND! AT LEAST FOR OUR BROTHERS SAKE!- nope! Red tried to wiggle out of Blue's grasp, but found out he wasn't gonna let go that easily. Because under his cute, soft appearence, that was NOT chub, that was MUSCLE.All muscle.- YOU CAN'T ESCAPE MY PRISON OF FRIENDSHIP UNTIL YOU AGREE!- aight, fine! Just let me go, pint-sized! Finally Blue let go of him. - SO! WHAT DO YOU WANNA DO? He added, recovering his chipper attitude.WANNA EAT THOSE TACOS I MADE? I MEAN, THEY MUST BE COLD BY NOW, BUT I'M SURE THEY TASTE FINE!》 Ugh...At least, Red had the whipped cream can when they inevitably taste like cardboard. They both made their way back to the kitchen. Red bit into a tacos, expecting the worst...But the worst never came. Huh... these were actually kinda decent.They actually tasted like meat! Alright, time to lay down on the couch and take a nap- "HEY, I HOPE YOU DIDN'T PLAN ON BETRAYING OUR AGREEMENT SO SOON!" *sigh* Alright, if that little blue bitch really wanted to do whatever Red wanted to, -apart from sleeping and binge-eating-Then might as well make Blue regret that decision.what's the thing that Blue would enjoy the least..? They could watch TV. Blue's so hyper he could not stand still unless it was something he enjoyed.But honestly, Red would get bored too. They could play fetch. Blue's basically a dog, and all Red needed to do was throw the stick every now and then.But it would get old real quick, and Blue was not that dumb as to let it slide. ...Oh. OH.Red just had a beautifully jerkish idea. He knew, since Blue was basically a Papyrus if it was a Sans, he probably didn't know what sex was. From that point, he had a choice: either explain in excruciating details what sex is to make Blue the most uncomfortable possible, or... trick him into fucking him. The first idea seemed more fun, but the latter required less mental effort. Then taking advantage of this little pint-sized fuck it was.This guy was either gonna chicken out and never bother Red again by asking him if he wants to do things, or Red was gonna have a good time.It's a win-win. 《- alright, Blue, i have an idea, but honestly, i don't think you're up for that kind of thing. Declared Red, laying down on the couch.- WHAT KIND OF THING? Cautiously asked Blue, walking up to him.- it's... well... a special kind of exercise. you can do it alone, but it's much, much better with someone else.- EXERCISE? I'M COMPLETELY UP FOR IT! BUT WHAT KIND OF EXERCISE? He walked right into it. - a special kind of exercise that we're gonna need to go upstairs to do...so, follow me buddy.》 Blue's eyes filled up with stars at the mention of "buddy". Were they finally becoming friends?? Even if that "exercise" didn't seem to be what it was, he was excited to do it with his new buddy! In a matter of minutes, they were both upstairs, in Red's bedroom, and he discreetly checked if he had condoms left -thankfully there was an unopened pack- 《- okay, are you ready to start, squirt?- I WAS BORN READY!- then the first step to this exercise is getting rid of excess clothes.it's gonna get hot.- WAIT... suddenly said Blue, eyeing Red suspiciously....ARE YOU TRYING TO GET ME TO HAVE SEX WITH YOU? Red was startled by that statement. He fumbled with his words- - WHY DIDN'T YOU JUST ASKED? NOW, I'VE NEVER ACTUALLY DONE IT, BUT SINCE I LEARNED WHAT IT WAS, I'VE BEEN MEANING TO TRY! Red was even more at a loss for words. -... then, do you really wanna do it? with me? the dude who keeps pushing you away and insulting you?- SURE! I WANNA SEE WHAT THE FUSS IS ALL ABOUT, AND WE'LL HAVE FUN TOGETHER!- ...alright then.》 Still a bit dumbfounded, Red quietly undressed, until his boxers were all that was left on him. He peeked at Blue, removing his clothes as well: his eyes wandered around his shoulders, the lovely light blue flesh spreading as it gained in opacity.Damn... now that he actually took a good look at it, the little guy was fairly brawny.Huh, Blue also had freckles on his shoulders, apparently... Blue's pants fell as a heap on the floor, along with his other clothes. Now they were both practically naked, save for their underwear, which didn't really do anything to hide Red's hardening bulge. 《- I'll pick these up later... Mumbled Blue, gently sliding the clothes away with his foot.W-WELL THEN... DO YOU LIKE WHAT YOU SEE? "Do i??" Said a little voice at the back of Red's mind.His boxers were starting to feel really tight... - wait, are those... tucking briefs? He asked, noticing the compressing undergarment.- YES, THEY ARE. I WEAR THEM TO EXERCICE WITHOUT GETTING MY... "STUFF" IN THE WAY.- uh-huh, gotcha. well, we're about to fuck, so, let's see 'em off~ Red sat down on his bed, a smug grin on his face as he watched Blue timidly take off his briefs.Wow. Yeah, these were definitely needed, unless Blue wanted to give himself testicular torsion. - nice pair, runt. giggled Red at Blue's now fully nude and fully visible body.and cute sheath~ Blue blushed furiously at that sentence, and the very tip of his dick was peeking out of said sheath. Red's turn. Finally, he could free his rock-hard, leaking cock out of his boxers. - O-OH MY STARS... Started Blue, a bit unnerved by the small barbs coating the organ. ARE- ARE THESE GOING TO HURT?- not if we use a condom and a shitton of lube. Assured Red, reaching for those in his nightstand.》 Red was laying down on the bed, cock standing up fiercely, glistening with it's rubber shield and lubricant, and Blue was crawling on top of him. He hesitantly rubbed his small cunt on Red's member before sliding it inside of himself. He slowly put the head in... and slammed down his body, taking the whole thing in like a champ. "Oh ffFuCK!" Hissed Red, feeling the tight walls of Blue's pussy wrapped all around him.Blue let out a small gasp as he felt something inside of him give way. He started to gently go up and down, adjusting himself to the size, before picking up the pace, precum leaking from his sheath, the man under him huffing and sweating already. "ah..Blue..." whimpered Red. "you're... so warm and tigHT-!" "ALREADY?" Though Blue, feeling Red's cock twitch as a sign that he was about to climax. Yes, already. Red came, throwing his head back with a loud moan.Blue was a bit disappointed. "congrats" huffed Red. "you officially aren't a virgin anymore." The shorter skeleton slid out the softening length out of him.Before he got off from being on top of Red, he asked him:《- RED, I FELT SOMETHING WEIRD INSIDE OF ME WHEN YOU PENETRATED ME. IS THAT NORMAL?- hmm? oh, you mean, like something small tore open? yeah that's normal, it was just your ian.- MY WHAT NOW?- full name of it is ianua virginis: it's like a tiny tearable membrane at the entrance of skeletons monsters pussies.When you have sex for the first time, it rips open and sends signals to your brain that you're ready to start having heats.- OH... THEN... DOES THAT MEAN I'M GONNA GO IN HEAT AT SOME POINT?- you got it, little buddy!- HUH. Blue slid off, and both of them stayed silent for a few moments, while Red removed the used condom. - WELL, AS SHORT-LIVED AS IT WAS, I ENJOYED IT. THANK YOU, RED.- umm... no problem, i guess?》 The sound of the front door opening brought them back to reality. Edge and Honey were back. "...see you next time?" Said Red tentatively. Blue gave him a little smile. "OF COURSE, FRIEND."
----- CHAPTER BREAK -----
It became a thing, between those two:When Edge and Honey left them alone for a while and they didn't know what to do, Blue and Red would have a quick fuck here and there.It wasn't anything serious, just buddies being bored and horny. But one day, about a month after that first time, Honey didn't come to Red and Edge's house.He did call, but all he said is that Blue wasn't feeling well, and that he couldn't visit. "oh. okay then." Red told himself.Wasn't a big deal.Wasn't like he'd gone soft for that little blue runt. But he did feel relieved to hear his phone's ringtone and seeing Blue calling him. 《- H-HELLO, RED...- hiya, Blue, whussup?- I... I THINK I'M EXPERIENCING MY FIRST HEAT... AND I CAN'T STOP THINKING ABOUT YOU... C-CAN YOU COME OVER, PLEASE? Of course. But before that, Red's gonna drink a tall glass of orange juice. - don't worry, pipsqueak, I'm coming~- HOPE Y-YOU DIDN'T HAVE ANYTHING PLANNED T-TOMORROW. O...kay? It did not take long for Red to end up in front of Blue and Honey's house. He rapped his knuckles on the front door. Honey answered it. - hey, Red. how you doin? - i'm good, how 'bout Blue?- he's uhhh... going through something. I don't think this the best time for you to be here.- he's in heat. I know. And Red tried to get past Honey, but the taller skeleton blocked his path with his arm. - i know what you're expecting. He said. But trust me, it's not what you're gonna find.The second you step into Blue's room, i am not accountable for anything that happens, got it?-... got it... responded Red, eyeing Honey suspiciously. Honey got his arm out of the way and gestured at Red to come in. - Blue's room is the first door upstairs. Explained the Papyrus, making his way into the kitchen.I'll be down here when you two are done. Red didn't respond.He instead walked up the stairs to Blue's bedroom. "No girls allowed.No boys allowed.Sans allowed." It said on the door.Yup, definitely Blue's room. *knock knock knock* - Blue? - RED! exclaimed Blue's voice from the other side. I-I DIDN'T EXPECT YOU TO BE HERE SO SOON!- can i come in or are you currently fapping while waiting for me? Blue got quiet for a few seconds... - Y-YES... TO B-BOTH... Red grinned. He couldn't wait to get in there and fuck Blue's tight, needy pussy, heck, he probably already got himself nice and wet and slick! Red opened the door, ready to tear off his shorts- But he stood frozen in the doorway. Now he knew what Honey meant, cause, yes, he absolutely did not expect that. Blue was sitting on the side of his bed, eyes closed, cheeks flushed and jerking off his massive cock. "Where was he hiding that thing??" Thought Red, eyes fixed on the huge throbbing member, giant pearls of precum shining at the tip. - RED... huffed Blue, looking up at the newcomer.I- I WANT YOU... SO BAD... Red stayed mute, slowly taking off his jacket, since he didn't know what else to do. Blue got on his feet, shaking, his dick twitching, a feral, carnal need reflecting in his gaze, and he took a few steps towards Red. Once again, Red froze in place. He was already trying to figure out how exactly was this thing gonna fit inside of him, if at all. Blue's hands wandered on his body, peeling off the shorts and the turtleneck...And once Red's chest was bare, Blue nuzzled it, rubbing his face on the soft, burgundy flesh and deeply inhaling the scent. (Much to Red's embarrassment) Speaking of, Red's cheeks were burning, as he was feeling Blue's erection rubbing on his leg. And, out of nowhere, Red was picked up off the ground and thrown onto the bed.He was still not used to how strong Blue actually was. - hey-hey wait!! Pleaded Red, seeing Blue about to remove his boxers.j-just... be careful with that... horse cock of yours, ok?- OF COURSE. responded Blue, not even looking up from Red's now uncovered hindquarters.》 Red's dick was fully out of it's sheath, looking rather puny next to Blue's, but his target was lower... There it was... red, puffy folds, already getting slick with arousal, to the point Blue had no problem sliding his fingers in and out of the tight orifice, making Red shiver with anticipation. Well then, there was no use waiting. Blue lined up the tip of his shaft with Red's vulva... and shoved the entire thing inside.Red gasped as it hit his cervix instantly. "N-not so deep!" He cried out.But Blue stopped listening as soon as he got inside. Blue's cock repeatedly slammed against Red's cervix, threatening to breach into his uterus with each thrust.It was painful as fuck, but strangely, Red found himself getting even more aroused by the pain. Blue lied down on Red's body, while his hips were bucking and thrusting as fast and hard as he could.He buried his arms in the folds of fat around Red's belly, sinking himself into the soft flesh, holding on tight. Oh fuuuck... Red's whole body was so warm, and soft, and big...Blue took another deep breath of his scent. The slats of the bed were letting out complaintive creaks, meddling with Red's howling as both of their bodies were moving, lurching together with the ferocious intercourse. "How long is this going to last?!" That little voice at the back of Red's mind yelled in exquisite agony. Not that long, apparently, because Blue was slowing down a bit, the massive length twitching, on the point of bursting. And finally- Hot, sticky cum started gushing out, accompanied by Blue vocalising his orgasm with a loud moan. But he didn't stop there. While he was cuming, he kept on thrusting, wanting to pump all of it deep, deep inside of Red.And even after that he wasn't done. He rested for about 30 seconds, then picked up the pace once again, resuming his mad humping. Red barely had time to catch his breath, tears of pain and pleasure running down his cheeks, before Blue shot a second load of seed into his belly. A bump was growing on Red's belly, the pastel blue cum filling him up and showing through his burgundy womb as a light, warm purple. "B-blue..." stammered Red, looking at Blue's face, which was still pressed onto his sternum. Blue didn't reply.Instead, he grasped one of Red's moobs and started sucking on the other, never interrupting his thrusting once. Red blushed even more furiously, finally climaxing himself. While diligently suckling and fondling Red's tits, Blue was letting out guttural growls of pleasure, resonating into his chest, along with Red's intense purring. For the third time, Blue came inside of Red, bloating his belly even further. And this time Blue actually slowed down. He popped out Red's slobbery, erect nipple out of his mouth and stood up, his cock still gently thrusting in and out... Red now had quite a visible swell on his belly, making him look like he was carrying a full-term baby. Sweat was pouring out of every pore, Red was shaking all over, his eyes and nose dribbling with tears, he looked like he was stimulated enough for two lifetimes... But Blue's body refused to calm down...He needed to cum again.He needed to see Red get even bigger.He needed to stuff Red until he was full to the brim with his seed. "JUST... ONE MORE..." he strained, picking up the pace. Blue lifted up one of Red's legs and was holding on tight to his thigh as he thrusted even deeper. Red let out a pitiful moan as he was getting pounded into submission once again.
Craack!!
Oops, one of the slats of the bed gave up.But Red was too busy being fucked silly to care. And, with a final twitch and moan from Blue, Red felt his insides expand even more, all of that hot, smooth cum sloshing around. Blue's cock was so acclimatised to Red's hot depths that it felt really cold when he finally pulled out, letting a bit of his sperm ooze out of his mate's vulva. Damn, Blue really enjoyed the view...It looked like Red was about to have twins. ...But Blue still had one more load in him, which he needed to put in Red. "B-Blue..." groaned Red through the tears "if you cum inside me again, I-i'm gonna explode..." So... not in there... but what about... Blue crawled on the bed, and positioned himself over Red's head, body facing the big swell. "HOPE YOU'RE HUNGRY..." he joked. And Blue slipped the head of his dick inside of Red's mouth. Ooooh~ it was just as warm and slick as his cunt... Gently at first, Blue started to thrust deeper down Red's throat, letting him gauge how deep he could go without choking him. When Red enthusiastically brought his lips down to Blue's hilt, Blue understood he could go as wild as he wanted.And that's what he did. Again, Blue humped deep, fast and hard, seeing the bulge of his cock go up and down Red's throat. "Mmhfuuck~" thought Red. Blue was using his trachea like nothing more than a fleshlight, and he was loving every second of it. Each time Blue thrusted in, Red's nose nuzzled the light blue ballsack, inhaling that sweet musk... And then, the grand finale. The load of all loads. Blue let out a scream of elation as his body let it all out in that one orgasm. Red greedily swallowed every last drop.It tasted... tarty... and fruity... like blueberries. Althought it was fun while it lasted, being able to properly breathe after Blue pulled out was sure welcome. Red looked down. His overstuffed organs were battling for space inside of his distended belly, trying their darnest to churn all of that sweet seed... The shorter skeleton gently lied down next to his alternate version, and cuddled close. He was really worn out. And he was sure Red wasn't gonna move anytime soon, with his giant bloated belly and his aching pelvis. "You're gonna make such a good mommy~♡" whispered Blue sleepily. Red didn't reply.He was dozing off himself. They both fell asleep, naked, sweaty and satisfied.
