Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/
works/8662699.
  Rating:
      Explicit
  Archive Warning:
      Graphic_Depictions_Of_Violence, Major_Character_Death, Rape/Non-Con,
      Underage
  Category:
      M/M, Other
  Fandom:
      Undertale_(Video_Game)
  Relationship:
      Papyrus/Sans_(Undertale), Sans/Sans_(Undertale)
  Character:
      Papyrus_(Undertale), Sans_(Undertale), W._D._Gaster, Underswap_Papyrus_-
      Character, Underswap_Sans_-_Character, Underfell_Sans_-_Character
  Additional Tags:
      Sanster, Vore, Body_Horror, Swapcest_-_Freeform, Violence, Blood, Death,
      Obsession, Rape/Non-con_Elements, Incest, Emotional_Manipulation, First
      Time, Underage_Sex, Painful_Sex, Lamiae, Oviposition, Forced_Pregnancy,
      Body_Modification, Hypnotism, beastiality, skelepreg, Ketchupberry,
      Cherryberry_-_Freeform
  Stats:
      Published: 2016-12-01 Updated: 2018-01-01 Chapters: 5/? Words: 7657
****** Uggy's OneShots ******
by idontevenknowugh
Summary
     Lots of sin here, mostly of the skeletal variety. Every chapter title
     will tell you what pairing and the really bad stuff, with detailed
     warnings in the summary for the chapter.
Notes
See the end of the work for notes
***** The Void Looks Back- Sanster - Vore *****
Chapter Summary
     Sans gets Gaster back, but the void has changed him a bit.
     Warnings: Sanster, vore, body horror
Chapter Notes
     wolfbunny and I were talking and this happened. I have no other
     explanation. I just…don’t.
It had worked! Sans dropped his clipboard, all thoughts of recording the
results of the test forgotten. He didn’t need anymore tests. In front of him,
looking a little less…solid than before, was Doctor Gaster himself!
“Dings!” He cried out, stepping forward to great his former boss and lover. He
had no idea what the time the other monster had spent trapped between realities
had done to him, but they could figure that out later. What ever had happened
to his body could be undone, and even if it couldn’t Sans didn’t care. He was
just thrilled to have the doctor back, in any form.
Two long thin forms jutted out of the black ooze that Wingdings seemed to be
formed of now, and Sans, quite naturally, thought they were arms. As…slimy, as
the other skeleton looked, Sans wasn’t about to deny him a hug after so long
trapped. This was one of of the most important monsters in the world to him,
and he was going to help him readjust to life. Not showing any disgust at his
new form was step one.
“It’s been so long, too long,” Sans felt tears on his cheeks at the thought of
having Wingdings back in his life, in their lives. Oh, Papyrus was going to
have so many questions but that didn’t matter! As Sans approached, a slow smile
started to grow across Gaster’s skull. Sans’s scientific mind marveled at how
the ivory surface had smoothed out, looking all definition except for the jaw,
sockets, and the two cracks that ran along each side. He hadn’t had those when
he left. Sans wondered what ha happened, but now was now was not the time for
such questions. All in good time.
S̛̠̩͟a͝͡͏͇̗̯n̹̼̩̲͈̩̟̠͈͜s̨̼͖͘̕
The raspy, broken voice sent shivers down his spine, but he forced himself to
smile back. His steps, and his smile, faltered as Gaster’s grin didn’t stop
growing, eventually reaching the sides of his, was that really a skull? What
this really Gaster? He took a step back as he watched what he thought had been
his lover transform into something unspeakable.
The slip made by his mouth allowed his mandible to start sinking down while the
cracks from his sockets started to expand, the sockets themselves loosing
definition as the upper portion of his skull split into three, all the parts
expanding outward. Between the four pieces of bone was a blackness that was
even deeper than the outside of Wingding’s body. It was pitch black in a way
that made Sans think of how he had read about black holes described. And yet,
despite appearing to be one solid darkness, it gave off the nauseating
impression of movement.
Sans ran. The tentacles he had mistaken for arms wrapped around his leg and his
torso, pulling him to the ground. He thrashed, desperate mind trying to
shortcut himself away, but it didn’t seem to be working. Panic grew as he tried
again and again and again. He felt his magic rip a hole through the void, felt
his body shift, but he didn’t actually go anywhere. He grew exhausted as his
magic depleted further and further through his attempts.
Í̴͉̼͕̹̹͍̬ṯ̶̫̖̟̟̱̤͢ͅͅ ̣̤͖w̢͔͈̳ͅo̴̩̜͕͚͕͕̻̣n̴͔̞͚̮'̛͏͏̭͉̹͚͙t̢̼̫̙͢͡ͅ
̶̝̼̻̳̝̫w̨̹̦̼̙̖̲͇͙o͎͝͝r̴̤͡k̵̪̖͖̺̥͔̺̠̪
Sans froze as the voice cracked and shrieked the words, despite the horror in
front of him no longer having a voice. What did that mean? Did this ooze have
control over his magic? It didn’t feel like it. Sans tried to think his way out
of this as he was slowly dragged forward, though fear made thought difficult.
He just had to focus. He had one, maybe two attempts left.
I̭̖̮ ̢͎w̦̠̬̙̖̭̬̯͞ͅi̳̬l̵̶͎̣̜̯͍̭l̷̡̰̭̮̩ ̩̱̰̦͞k̸̙̬̳͇̮e̶͉e͝͏̯̪̯̖p̧̝͇̙̼̗̤̙̘͞
̴͖͙̭̬͙̤͜b̪̳ṛ͉͟í̪͉͈̲͈͘n͓̻̲̫͘g̨͉͎̠̙͓̰ͅi͚͚͚͍̦̞͓n̺̳̻̲̫̕g̛̬̣̕
̢̟̱͔̥͍̼̱̲y̵̴̡̦̬ó̢̥̣̱͈̝͝u̲͖̭̬͉̪͡ ̷̛͓̖͔̩̲͕b̶̤̯̘͠a̬͍͓̙͉̰̯̼̳͞c̣̲̳̮̀k̵̩͈̬̘̼̺̕
As he drew near to the gaping maw of darkness, Sans could feel the words like
physical things crawling along his bones. He let out a whimper as he was slowly
lifted off the ground by the pull of the tentacles. He didn’t know what that
meant beyond that shortcuts wouldn't work. So he tried something else. A flurry
of bones appeared and sunk into the oozing mass with a series of sickening
squelches. The monstrosity didn’t react.
Ư̶̬͚͉s͚̦͇̫̠͘e̡̲̻͔̺̹̯͘͢ͅl̺͓͙̞͍͇e̷̞͈̪̝̟̰̲ş̤̣̭̦͙̝̮͝s͏҉̘̠̬̳
His legs were pulled into the slimy blackness, and Sans found that it was
disturbingly warm and thick. It immediately began to push into his joints and
Sans screamed as the magic that was holding him together fought the intrusion.
His phalanges reached for the floor, arms flailing, as hysteria finally took
hold. It reached his pelvis, rushing to fill and encompass the bones there. His
clothing seemed to be no obstacle to the ooze, the fabric just as saturated
with the slime as he was.
“no! help! papyrus!” Sans screamed, voice uncharacteristically shrill from
terror, desperate for some kind of salvation. His ribs sank into Gaster, his
ribcage slowly filling. His soul pounded as the ooze grew near. What would it
do to his soul? Was this the end? Was he about to die? The first touch of the
inky slime on his soul sent convulsions through his body. His screaming died
off as the entirety of Gaster’s experiences flooded into him. He couldn’t take
it. His mind short circuited as he spiraled into an endless pit of memories
that weren’t his.
“SANS!” Papyrus entered the lab with a crash, the door flying open on broken
hinges. He lept down the stairs, his brother’s fear laced screams overriding
everything else. What he saw, though, stopped him dead. Sans was being sucked
into a great big black…thing, and was already consumed up to his cervical
vertebrae, one arm hanging out beside it. His brother’s sockets were empty and
the only movement was a slight twitching.
“GIVE HIM BACK, YOU, YOU FIEND!” Papyrus rushed forward and grabbed the arm,
pulling gently at first, afraid to hurt Sans in the process, and than harder as
his efforts had no effect. He was pulling with all his might as Sans’s sockets
disappeared, only the crown of his skull and his hand visible now. The process
didn’t stop, only pulling his phalanges in along with his brothers. He
instinctively let go and pulled back as the edge of his glove disappeared with
a slight burning sensation. Papyrus could do nothing more than stare on in
horror as Sans disappeared into the darkness.
“GIVE ME BACK MY BROTHER!” He screamed, bones appearing everywhere and hurtling
towards the beast, another appearing and attacking as soon as the one before it
was loosed. Papyrus let his magic pour out of him without thought or
hesitation. None of it seemed to phase the other, however, as it began to
shrink in on itself, the top semicircle and the bottom point of it’s teardrop
shaped opening coming together. There was bone at each point and Papyrus only
grew more furious as a sections slowly stitched themselves together into a
grinning face.
Desperate for anything to help, Papyrus checked the thing, hoping that it was
some manner of creature with stats. Maybe he could find a way to help
Sans.
 
 

Ẉ̧̪̺͉͍͇̭͚̙͓̲̫͛̀͗̇̈͂̎ͭ̔̍ͫͬͫͤ́̚͘.̵̶͗̓̑̿̓̉ͬ͛̓̈ͬ̉̀̚͏̻͖̰̫̯̥̼̲̤̹̘͕͉ͅD̴̵̞̪̙̦͚̖̝̤̺̱͕̜̜̮͉͎ͧ͋̃̽̈ͬͤͫ̀̄ͪ̐́̕͠.͑̾̏̈҉̫͔͇̘͈̩͍̟̣̰͠
̓̿͊ͩ̓ͣͮ̎̓̾ͬ̿ͨ̽͊̒̇̆͠҉̵̼͙̙̬̯G̵̹̲͓͙͙͓͔͕͕̺̺̜̲̪̠̥ͣ͗̾͗̓̆̆ͦ̿ͮ̒ͣ́͒̌͒̿͗̕a͈̲̙͈̞̠̲̱̻͚̞̭̘̲̫̩͇̍ͨͤ̌ͣ͊̈ͬ̒̔ͤ̈́̓̂̊ͥ̀͘͝͞s̡̧̤̯͉̗̣͖̗̝̱͙̠̦͉͉̞̆̇̈̈́͊ͧ̈́͑͐̑̂͐͌̚tͧ͋̌̐̅ͨ́̈́̋̃ͤ͗ͩ͊̿̂̑̚҉̜̪͓e̯̪̭͔̹̤̣͔͒̓̐̽́̿ͩ͒ͬ̇ͧ̐ͮͬ͜ṛ̴̢̞̠̰͓̤̙͕̫͈̗͔̜̎̀̍̇̐̾ͥ͂̿͌̇̏ͅ
A̵͢͢͝T͘Ķ̴ ̸́͠͝*̡̨̢͢͢*̷̀*̸̨͝ ̶͞͠ ̵D̡͏͏È͏͠F̵̵́͡͞ ̴͏̵͜͡*̀͜*̸͟͜͢҉*͢͞
H͠͠͏͈̩̩̼̜̜͠e̷̢̜̲̰̱ ̸̙̞̘̮̞̤̦̣̙̬̗̟̥͈͇̲͡i̝̥̞̹̖̙̩̱̰̞̬̼̹̩͓̙͟͢͢͠ͅs̲͓̀ͅͅ
̸͘͏̥͚̜̹̙̝̹ͅm̵̡̞̲̣͔̻̤̥̣̯̦i҉̲͈̤̹͕̲̬̠̮̠̘͉͡ͅn͏̗̪̞̹͇̦͚͢ę̴̼̼̦͈͢͞͠
̵̴̱͓̞̻̟ͅn̡̡҉̧̫̟̲̺̜̺̹̰̘̫̰͙̥͍̳ơ̢̗͈̜͓̲̩̪̘̜͍̰̞͇͜w̕͏̜̟͉.̘̺̯͎̘͕̫͍̠̣̯͚͎̦͎̼͢
 
 
Papyrus recoiled, looking away for a soul beat. When he looked back it was
gone, and so was Sans.
***** No More Distractions - Swapcest - Violence, Death, Rape *****
Chapter Summary
     There was something freeing about letting yourself off the hook.
     Today, Papyrus decided, he would finally relax and let loose. He was
     tired of being strict with himself. He was tired of denying himself
     what he wanted for the sake of others. What had they done to deserve
     his suffering? No, those filthy people had gone and thrown all of his
     self control back in his face. If they thought so little of it, then
     Papyrus was happy to abandon it.
     Warnings: violence, blood, death, obsession, rape/noncon
Chapter Notes
     Based on this_comic by eli-sin-g, which made my creep Swap Pap loving
     heart get all worked up. I love their art so much and this comic was
     just AMAZING. I really wanted to write it from inside Papyrus’s
     fucked up brain, and I hope I did it justice. ^_^
There was something freeing about letting himself off the hook. Today, Papyrus
decided, he would finally relax and let loose. He was tired of being strict
with himself. He was tired of denying himself what he wanted for the sake of
others. What had they done to deserve his suffering? No, those filthy people
had gone and thrown all of his self control back in his face. If they thought
so little of it, then Papyrus was happy to abandon it.
He caught the back of her shirt, but barely. His phalanges clenched, clinging
to the bit of fabric as the unexpected pressure of his grip made her slip and
fall. She hit the floor with a thud and a gasp. She was crying. He frowned down
at her as she fought to regain her footing, slipping in the blood that had
splashed onto the floor. She shifted so that she could look up at him, fear
bright in her eyes. It gave him a sense of satisfaction to see. She had been
one of the worst…
Happy Birthday!
“Oh my stars! Are these really-?”
“Yes! The concert is in two weeks!”
“Wow, Napstablook in person. You’re the best!”
The axe sunk into her should with a solid thump. Papyrus felt the impact all
the way up his humerus as the blade found bone. She screamed, thrashing in an
attempt to get away from him. He tugged on the handle, but the axe was stuck.
Summoning a sharpened bone, he slid it into her chest, only for it to stop
after a few inches, jarring his carpels. Oh right. He raised the bone again,
letting go of the wooden handle of the axe to grip it with two hands.
“N-n-no, please, Papyr-,” he brought it down with all of his strength. There
was a squelch, and he felt as it hit, then broke through, her sternum. Her
pleas turned into a scream, which quickly cut off with a gurgle, thank the
stars. Her hands shook, but still she clasped at the bone weakly, as if trying
to remove it. Papyrus obliged, pulling up on the embedded bone. It didn’t
budge. Instead her torso lifted a few inches off the ground, prompting a keen
of distress from her. He released it, dropping her back to the ground with a
splat. Gripping the end again, he pulled, twisting this time to dislodge it.
With a loud crack, the bone splintered, leaving a long jagged shard embedded in
her chest.
Papyrus dispelled the bone and stood. Blood oozed out of the wound, thick and
dark. Humans were so….messy. Her struggling slowed, and finally she stilled.
Bracing one foot against her chest, he pulled out his axe. It had made today go
so much smoother, and he was loath to let it go quite yet, even though he was
pretty sure he was finished. Papyrus pulled a pack of cigarettes out of his
pocket, followed shortly by a lighter. He lit up as he started back to the
kitchen to wash up, the axe tucked under one arm, but, as he passed the hallway
to the bedrooms, Papyrus caught sight of him. His angel.
Sans was crouched over a dust pile, staring at it shakily. Papyrus paused to
just take in the other skeleton for a moment. Sans cared so much about those
filthy people, much more than they deserved. They bought his attention with
gifts and tricked him into spending time with them when he wasn’t theirs. He
was Papyrus’s. He would always be Papyrus’s, now that those distractions had
been removed.
He stepped forward down the hallway, the soft sound of his slipper hitting the
floor enough to draw Sans’s eyelights to him. That lovely light blue magic
danced around, taking in his appearance. As Papyrus continued forward, Sans
fell back onto his coccyx before scrambling backwards as best he could. Papyrus
didn’t rush, though. He didn’t want to scare his sweet Sans. Besides, it wasn’t
long before the smaller skeleton hit the wall at the end of the hallway.
Sans looked radiant, even with the filth's blood and dust on him. Papyrus
couldn't help himself, and he didn’t have to. He discarded the axe to reach out
and reverently caress that skull, the one that haunted his dreams and drove his
fantasies. Sans flinched and yelled about those people, but Papyrus was patient
with him.
Distractions gone, Sans finally confessed what Papyrus had always known had to
be true. Soul strangely calm, he took the chance to profess his own love. The
activities of the day had really left him feeling very fulfilled and relaxed.
Stars, Papyrus had never been so happy as that moment.
When he pressed their mouths together, Papyrus marveled at the way Sans tasted,
like nothing he had ever experienced before, tongue sweet and soft against his
own. The smaller monster squirmed, and Papyrus steadied himself. His angel
deserved nothing less than an experience as perfect as he was. Yes, yes, yes.
That's what this day needed. He would take care of Sans and give him the
pleasure that they both craved.
Sans seemed confused, but his body certainly wasn't. It responded readily to
Papyrus's touch. Before long, Sans started to make the most precious little
noises, his words often cut off so that a moan or a gasp could take its place.
The smaller skeleton slid slowly to the floor, protests dying out. Papyrus
gazed down at his angel, where he lay panting and wanton on the floor. Finally,
after so long, it was time to join to together with Sans, to claim him fully
and be his in return.
The shorts came off easily enough, and were dropped to the side. Sans melted
under Papyrus’s touch, and before long, he was ready. Papyrus didn't wait long
enough to remove any more clothing. He couldn't wait. There would always be
time later.
Sans gasped as Papyrus entered him, and, soon enough, those gasps to turned
into moans. He kept trying to talk, and Papyrus admired his perseverance, but
he made sure that the smaller skeleton couldn't get a word out between thrusts.
Papyrus wasn't in much of a listening mood.
Stars, this was amazing. Sans was amazing. Papyrus had never been happier. He
slowed down and checked with Sans, because really, this was all for him. Even
as Sans pushed back into Papyrus, taking his cock even deeper, Sans questioned
him, his devotion. Papyrus thrust harder, grunting as he felt Sans start to
tighten around him.
He would just have to show Sans how much he loved him. He could convince the
other monster, even if he had to show him over and over again. Even if it took
the rest of their lives.
***** Big Brother is so Proud of You - Swapcest, Manipulation, Underage *****
Chapter Summary
     Sans is very attached to Papyrus. He just wants to make sure Papyrus
     is even more attached to him.
     Warnings: Swapcest, incest, underage, manipulation, first time,
     painful sex, CreepBerry
Chapter Notes
     asksanrustheskeleton said:
     Can u do a swapest story pls if its not to much trouble and tgx for
     the fellcest story!
     So instead of continuing in the same vein as SweetFell, I decided to
     go back to my true nature. Have some CreepBerry creepin’ on his
     brother. I hope you like it anyways!
“PAPY….YOU’RE DOING SO WELL….AH!” Sans rolled his hips forward, enjoying the
little gagging noises Papyrus made as he caught him off guard. The taller
monster didn't pull away, this time, and Sans made a mental note to do
something nice for his brother.
Sans groaned as there was a tentative swallow around the head of his member.
Stars, Papyrus really was getting better at this. Sans wouldn't last too much
longer if he kept doing that thing with his tongue. He set his phalanges on
Papyrus’s skull and indulged in a few more shallow thrusts before gently
pushing his brother back. Papyrus fell onto his heels, tongue absently licking
his teeth where orange and blue magic had leaked out. He waited for further
instructions, sockets covered by Sans’s light blue bandanna.
“HOW DO YOU WANT TO DO IT, PAPY?” Sans asked, smiling down at his brother.
Papyrus fidgeted, expression thoughtful, and then he blushed. He looked away
and, as pointless as it was, the gesture was cute. He only hesitated for a
moment before turning over onto his hands and knees, lowering his torso and
presenting Sans with his light orange entrance. Sans was thrilled to see that
his brother was aroused and juicy. The last few months had really payed off.
Grinning, he spotted the perfect opportunity to let his brother know what a
good job he was doing.
Moving off the couch, Sans summoned his tongue and slipped it into Papyrus
without warning. He felt his brother’s body jerk and start to pull away, but
Sans quickly took hold of his femurs to hold him still. He thrust the magic
appendage in and out of Papyrus, the taller skeleton burying his skull against
the carpet to muffle his moans.
It didn't take long for Sans’s enthusiastic and talented tongue to wrench an
orgasm from Papyrus. Pulling back he watched as his brother shivered from the
pleasure racing through him. Before the after shocks had ended, Sans hopped to
his feet and sunk his member into Papyrus, all the way to the hilt. Papyrus
cried out and clutched at the carpet as Sans began to thrust immediately. Sans
groaned as he felt Papyrus shiver and jerk under him, his magic overwhelmed
with sensation.
A a second orgasm followed shortly after, but Sans didn't let up, moving as
hard as he could into the hot, tight magic as Papyrus clenched around him.
Stars, it felt wonderful. Papyrus rocked and cried beneath him as his climax
came and went, his magic now even more sensitive.
“Sans….please….no……I can't……nnn,” Papyrus’s low, husky voice was ragged from
the use it had gotten so far. Sans didn't listen, though, sure that Papyrus had
one more in him, if Sans could just hold on. He grit his teeth and fought back
his own finish until he felt the first ripple of Papyrus’s magic. Pushing
himself to go faster, Sans pressed deep into his brother, letting his orgasm
wash over him as Papyrus screamed.
When normal senses returned, Sans slid out of Papyrus and dispelled his magic.
The other monster collapsed sideways onto the carpet, Sans having been the only
thing keeping his pelvis suspended. Slick magic oozed out of his opening, and
Sans was quick to grab one of the towels he kept around the house for just such
an occasion.
“UP,” he promoted, pulling slightly on Papyrus’s pelvis. The taller monster
groaned, but complied, pelvis lifting high enough for the towel to be slid
underneath. It fell heavily to the ground as soon as he removed his phalanges.
Straightening, Sans walked over to kneel by his brother’s skull and remove the
bandanna. It alway thrilled him to see the normally calm and collected monster
in such a state and to know that he was the cause. Stroking his phalanges along
Papyrus’s skull, he smiled down at the tears that still leaked from his
brother’s sockets.
“GOOD JOB, PAPYRUS. BIG BROTHER IS SO PROUD OF YOU.”
—————
“sans, are you sad?” The question came completely out of the blue, startling
Sans out of his thoughts as he worked on dinner. He looked over at Papyrus
where he sat doing his homework. The younger skeleton was frowning and giving
Sans an intense look. He forced a smile anyways.
“OF COURSE NOT! THE MAGNIFICENT SANS IS ALWAYS CHEERFUL AND HAPPY.” Papyrus
didn’t look convinced. “WHAT WOULD EVER MAKE YOU THINK OTHERWISE, PAPY?”
The younger skeleton looked away, suddenly self-conscious. Sans had to admit
his curiosity was piqued, but he didn’t press. The last thing he needed now was
for Papyrus to shut down.
“i, uh, heard you crying, last night.” He finally muttered. Sans turned quickly
back to the stove, thankful for the cooking food as an excuse to hide his
blush. He mentally berated himself for his tendency to be…loud.
“W-WHAT WERE YOU DOING UP?” He asked, stirring the contents of the pan with a
little more force than necessary.
“couldn’t sleep,” was the suddenly bland reply. Sans forgot his embarrassment,
gripping the spatula with all of his strength at the thought of Papyrus
thrashing in bed, calling out for a monster that wasn’t him. Counting down from
ten, he calmed himself. When he unclenched his phalanges, he noticed that he
had left indents in the handle.
“ANOTHER NIGHTMARE?” Sans asked, concern masking his darker emotions. “YOU
SHOULD HAVE WOKEN ME, PAP.” He said it automatically, like he always did when
Papyrus grew too worried about bothering him.
“I was going to,” Right. Sans could have slapped himself, if he were a violent
monster, “but i heard you crying and i didn’t know what to do, so i went back
to my room, sorry.” Sans glanced over his scapula to see that Papyrus looked
appropriately miserable.
“I should have helped you, like you always help me,” Tears formed in his
brother’s sockets. “I would do anything for you, Sans, but I was scared.”
“OH, PAPY, THAT’S SO SWEET OF YOU.” Sans beamed at him. “BUT I WASN’T CRYING. I
WAS…,” he struggled to come up with an excuse for the noises he was making,
without admitting what he was actually doing. “READING A FUNNY BOOK.”
“it didn’t sounds like laughing…” Papyrus looked confused.
“THAT’S…BECAUSE I WAS TRYING NOT TO LAUGH, SO I WOULDN’T WAKE YOU,” Sans said
cheerfully. He hoped this worked. He was not ready to talk to Papyrus about
those kinds of urges yet.
“Oh, okay,” Papyrus gave him a smile and then returned to his schoolwork. Sans
breathed a sigh of relief and went back to cooking.
—————
“NGH,” Sans felt the impact of his spine against the tree dully, his entire
body already far too occupied by the feeling of Papyrus. He didn’t let his
little brother do this very often, so when he did, the normally lazy monster
put his all into it, which Sans appreciated.
He gasped as Papyrus continued to drive in and out of him, fast and hard. He
had his phalanges under Sans’s pelvis, supporting him against the tree as he
made love to him. Papyrus was always careful with him. Sans’s legs were bent
up, feet dangling in the air. Stars, he loved this.
Still, he reserved letting Papyrus top for when he needed it. He didn’t want to
give his brother the idea that he could have Sans whenever he wanted. Besides,
the hungry look on Papyrus’s face when Sans mentioned giving him a ‘special
treat’ went straight to his pelvis.
“Sans…” Papyrus moaned his name, leaning forward to lather attention on his
cervical vertebrae. Sans arched into him, enjoying the attention. He wasn’t
used to being on this end of things, and his magic was extra sensative. His
orgasm was building quickly. He wouldn’t last much longer, at the pace his
brother was going.
“YES, PAPY, THERE!” Sans tried to keep his voice down as he cried out, but he
was boisterous in this, as with everything. Papyrus tilted his pelvis up, his
member slipping even deeper inside. They came together, skulls buried in each
other’s clavicles to try and muffle their voices.
After a moment, Sans wriggled, prompting the taller monster to step back,
pulling out, before slowly lowering him to the ground. Sans leaned back against
the tree as he waited for his legs to start working properly again. Papyrus
stood panting in front of him, quickly fastening his pants. He went and grabbed
Sans’s pants from where they had been dropped.
“Come here,” Sans prompted, voice sweet as Papyrus handed him the garment. He
gave Papyrus a deep kiss, assured that his brother would think of no one but
him for the rest of the day. “You better get back to work.”
—————
For the past three months the younger monster had been withdrawn, despondent,
practically. Papyrus had gone from being an enthusiastic, if somewhat shy,
monster to his current state, well, not quite overnight. There had been a
period where, Sans frowned at the memory, Papyrus would do nothing but cry and
call for…he couldn't even remember the name. Sans had done everything he could
to comfort his baby brother. He had soothed, cajoled and begged his brother to
come out of it. Wasn’t Sans good enough? Who was this, this stranger whom
Papyrus called out for when he slept?
Sans, only 14 himself, was patient. He did what he needed to, took care of
Papyrus, and got them through that unpleasantness. When the episodes grew less
frequent and eventually stopped, he found that his brother was changed. He went
to school, did his homework, got top marks, even. He just didn't seem to be
interested in much else. At home he would watch tv or sleep. He didn't have
hobbies, or friends. He just didn’t care. There was only one exception. Sans
himself.
Papyrus had latched onto Sans like a lifeline, which given how he had cared for
the other, Sans only found fair. Papyrus visibly brightened when he caught
sight of Sans after school, and that transformation never failed to brighten
Sans’s day as well. Even Papyrus’s teachers would smile and tell him how his
little brother bragged about him like he was the best monster in the
underground. He would flush and deny that, but inside his soul was humming with
pride and joy.
The teachers also confided in Sans that they were worried that Papyrus wasn’t
socializing well. He didn’t get in any fights, and all the other kids seemed to
like him well enough. He’d even talk to them, in his easy way, but Papyrus just
wouldn’t make friends. Sans promised he would talk to Papyrus and try to find
out what was going on. When he went home, he never did. They might be worried
that his little brother would grow up without anyone in his life besides his
older brother, but Sans wasn’t. Sans was counting on it.
—————
Sans contemplated the huge stack of papers. Humming happily to himself, he
began to sort Papyrus’s mail. If he happened to look at the papers as he
opened, what did it matter? His brother’s mailbox was always full to the brim,
and while the good majority of the envelops were either ads or bills from
Muffet, the odd correspondence would show up. Sans just wanted to protect
Papyrus from those monsters who might try to take advantage of his easy
attitude.
He picked up a pink envelope, handwritten and just too cute. With the barest
hint of a frown he opened it. It was that damn bunny again. She was an unsavory
sort, always hanging around Muffet’s and looking for the next monster to pay
her tab. Well, Papyrus wasn’t going to be much good to here, there. He couldn’t
even pay his own. Dropping it into the trash with the rest of the junk mail,
Sans moved on to the next envelope.
—————
“Sans, I don’t know…” Papyrus clutched the bottom of his shirt, tugging it down
hard enough that Sans could see the shape of his ribs through it.
“I JUST WANT TO TRY,” Sans pleaded, his eyelights widening slightly. “IT WILL
MAKE ME FEEL GOOD, AND YOU TOO. LIKE THE OTHER NIGHT. WHAT COULD BE SO BAD
ABOUT THAT?”
Papyrus’s brow bone lowered in thought, but he didn’t seem to have a reply.
Sans waited, soul humming with excitement as he felt victory grown near.
“i don’t know. it just doesn’t feel right…” Papyrus repeated, and Sans could
hear his voice grow thick with emotion. His brother was used to knowing
everything, and grew frustrated easily when he didn’t.
“DON’T YOU TRUST ME, PAPY?” Papyrus looked hurt at the suggestion, his mouth
opening to form a reply, but Sans didn’t give him a chance. “I’LL TAKE CARE OF
YOU. NOTHING WILL GO WRONG.” Papyrus’s mouth shut slowly as he realized just
what Sans had done. Instead of protesting any further, he just nodded, though
his grip on his shirt tightened.
“GIVE IT A TRY, PAPY,” Sans reached out his phalanges to Papyrus, “FOR ME.”
Sans saw the moment his brother’s resolved crumbled, his grip on his shirt
releasing, the fabric bouncing up as he immediately gripped onto Sans instead.
Sans murmured comforting things while he undressed his brother, leaving him
bare to Sans’s hungry gaze. Papyrus fidgeted, unsure what to do with himself.
It was cute, but eventually Sans had to move forward. He touched Papyrus all
over, poking, stroking, and even licking to see what his brother liked. When it
seemed as though Papyrus was shivering too badly to stand, Sans laid him down
on his bed.
Straddling his brother on his patella, Sans continued, his magic growing warm
as Papyrus panted and moaned. He even squeaked when Sans surprised him by
grabbing his pubis roughly. The touch also made him arch off the bed, as if
reaching the bone towards Sans’s own. Before long, they both sported their
members, Sans’s a light blue and Papyrus’s golden orange.
They rubbed those together, and it felt amazing, but Sans had a fantastic
thought. He pulled away as their movements grew more frantic, not wanting to
loose his chance. Papyrus whined as their magic broke contact.
“sans,” he whimpered, thrusting up mindlessly in an attempt to maintain
contact.
“JUST A SECOND, PAPY, I WANT YOU TO TRY SOMETHING.” Sans stroked his brother’s
skull. “I WANT YOU TO MAKE A HOLE, HERE,” Sans poked just below the pelvic
inlet. Papyrus moaned and pressed into the contact, but Sans pulled away.
“sans, please, i can’t…” Papyrus whined, “just a little more.”
“YOU CAN, I BELIEVE IN YOU!” Sans rubbed a phalanx against the magical flesh
again, where he wanted Papyrus to make the entrance he had seen in his book. It
took another few minutes before Papyrus began to focus and mold his magic, but
Sans was patient.
The end result was surprisingly similar to the picture, despite Papyrus not
seeing it. Sans wondered if, like their members, their magic just knew what to
do.
“PAPY, IT’S BEAUTIFUL,” Sans praised, running his phalanx along the folds of
magical flesh. Papyrus jerked his hips and gasped in response. Sans played with
it a little more, even slipping a couple of digits inside. It was wet and
slimy, which surprised him. He couldn’t resist moving on, though, excited to
try it out.
He sat up , bringing Papyrus’s patella with him, over his scapula, and lined
him member up with the hole.
“sans, what?” Papyrus asked softly.
“JUST RELAX,” Sans slid into the wet hole slowly, or he tried to. It felt so
good, and he just couldn’t help but thrust a little harder as he felt his
progress impeded by Papyrus’s tight walls. Papyrus wailed, pelvis trying to
jerk away.
“it hurts!” he cried, tears flowing from his sockets. Fully inside him now,
Sans leaned down and brushed them away.
“IT’S OKAY PAPY, IT WILL STOP HURTING. YOU’LL FEEL SO GOOD. TRUST ME.”
—————
Sans pushed into Muffet’s to a chorus of monsters heckling Papyrus for making
his ‘poor brother’ come and get him once again. Sans frowned at the friendly
way the sentries, barflies, and everyone in between talked to his brother. He
hated that Papyrus spent his time here, with them. They, of course, thought he
was frowning at his brother’s drinking habits. They always did, and Sans was
happy to keep the illusion going, berating his brother loudly for his over
consumption of honey and failure to return home. He shouldn’t be such a bother
to everyone, but Sans would take care of everything. Like he always did.
Drunk themselves, the other patrons of the bar joined in, backing Sans up in
teasing tones. Muffet even chimed in with a comment about his tab. Papyrus
smiled through it all, like he always did, but Sans could see the way his
scapulae slumped a little more with each jibe. He didn’t stop them, though.
As he helped his brother out into the snow, Sans could feel him shaking
slightly. He didn’t comment, letting silence carry them home. Once inside, he
busied himself with fetching some tea and tacos for his brother, to help take
the edge off.
“do…do they really dislike me that much?” Papyrus asked from where he had
collapsed on the couch. Sans paused, thinking through his answer before he
stepped out of the kitchen to face him.
“HOW COULD ANYONE DISLIKE YOU, PAPY?” He asked, voice full of surprise. “THEY
WERE…HARSH, BUT I WOULDN’T PAY ANY MIND TO WHAT A BUNCH OF DRUNKS SAY. IT’S NOT
LIKE ANY OF THEM ARE YOUR FRIENDS, REALLY.” Papyrus lifted his skull to look up
at Sans sadly. Walking over to crouch besides the couch and stroking his
brother’s skull fondly, Sans gave him a big grin.
“I THINK YOU’RE THE BEST! WHAT DOES IT MATTER WHAT ANYONE ELSE SAYS?” Papyrus
gave him a weak smile before accepting Sans’s kiss readily.
—————
“…an…, san…., sans….” The urgent whispers and gentle shaking slowly woke Sans.
He looked around the room twice before spotting the vague shape of Papyrus in
the dark.
“PAPY?” He asked, groggily. Sitting up, he rubbed at his sockets. “NIGHTMARE?”
He could hear the soft sound of fabric sliding together as his brother shifted.
A soft tapping noise started up, and Sans knew his brother was fiddling with
his phalanges. He grabbed the top edge of the blanket, ready to lift it when he
got a reply.
“no, i mean, i don’t think so,” Papyrus sounded nervous. Sans shook off the
dredges of sleep, concern speeding the process.
“What’s going on?” He lifted the blanket, but instead of getting up, he use the
other set of phalanges to pat the bed. He didn’t care that Papyrus was now
taller than him, his growth spurt showing no signs of stopping. He would always
be Papyrus’s big brother, ready to take care of him.
Papyrus hesitated, but got in the bed, slipping under the covers to sit besides
Sans. He was wearing his honeybee pajamas, which Sans had been so proud to find
at the dump. Sadly, he would outgrow them soon, and Sans could feel how tight
the top was across his brother’s scapulae as he pulled him in for a hug.
“Tell me, Papy, so I can help,” He murmured soothingly, mindful of the way his
brother sat stiff in his arms. Gently, he began to massage his brother’s spine,
but that only seemed to make him more tense. Sans frowned where his skull was
hidden against Papyrus’s clavicle.
“I don’t know what’s going on,” Papyrus whimpered, and Sans’s alarm grew. His
brother, rarely sounded so uncertain, and even less frequently got this worked.
“THAT’S OKAY, WE’LL FIGURE IT OUT,” Sans soothed, phalanges continuing to work.
“TELL ME WHAT YOU DO KNOW.”
“m-my bones, they feel, well, they feel hot,” Papyrus began to shake,
“especially….i can’t, sans. it’s embarassing...”
Sans already had an inkling of what was going on, so he began to pull Papyrus
to lay down. The taller monster followed after a moment’s resistance, and they
ended up laying down, Sans still wrapped around Papyrus.
“IT’S OKAY, PAPY,” Sans talked as he adjusted them until Papyrus was on his
side and he was curled up against his back. “I’VE GOT YOU.”
Once they were settled, he began to move his phalanges again, stroking
Papyrus’s ribs, making him gasp at the sudden touch. “s-sans, what-mmm.” Sans
smiled against his brother’s skull and kept silent, his hands slipping under
the faded t-shirt to play more directly with the sensitive bones there. Papyrus
didn’t ask again, but then, he seemed somewhat overwhelmed by the sensations.
He brought his phalanges up to his skull, muffling a whole host of moans,
gasps, and groans. His shivering only increased, rubbing his body delicately
against Sans’s.
When he moved lower, stroking Papyrus’s lumbar spine and teasing the top edges
of his iliac crests, the sounds grew louder, though they were still stubbornly
muffled. Sans didn’t push, though. Whatever made Papyrus more comfortable.
“There, doesn’t that feel good?” Sans whispered, massaging the crests, his
phalanges dipping lower and lower. He felt Papyrus jerkily nod his head at the
same time his pelvis ground back against Sans slightly. It had been bad enough,
listing to his brother’s lewd noises, now Sans felt his own bones heat. He
ground back, experimentally, to find that Papyrus made a sort of half gasp and
immediately returned the pressure. Sans massaged his way down the ilium,
keeping his touch light along the edge of the pelvic inlet. Nonetheless,
Papyrus let out a sharp cry at the first touch that wandered there.
Sans kept one hand on Papyrus’s pubis while the other shifted around to the
back to tease his sacrum and coccyx. The cry from that was even louder and Sans
felt his brother try to shift away, but before he could, he brought one arm up
to encircle his ribs.
“SSSSH, IT’S OKAY,” he jerked Papyrus’s coccyx, clinging to the trembling mess
that was his brother. “I KNOW IT’S A LOT, BUT THIS WILL FEEL SO GOOD, PAPY.”
One warm pulse of magic was the only warning he got, and then his phalanges
encountered the soft mass of Papyrus’s manifested flesh. He stroked along it,
prompting a whimper from the other monster.
“sans….what…?” Papyrus removed his phalanges from his jaw, his voice cracking
over the words in a way that Sans found just adorable.
“LATER. THIS IS FINE. JUST LET ME TAKE CARE OF YOU. YOU’LL FEEL SO MUCH BETTER
AFTERWARDS,” Sans grasped Papyrus’s member and gave it squeeze. Papyrus moaned
loudly and thrust his pelvis forward. Grinning, Sans stroked it, enjoying the
way Papyrus shook as he tried not to thrust any more, as though he thought it
might offend him. A series of half aborted movements followed as Papyrus’s
needs fought with his self-control. Sans kept his pace slow and his touch soft
until he felt the movements grow more desperate.
When he sped up, Papyrus yelped, and Sans felt the pillow shift under his
skull. It didn’t take long, as he had expected. His own first time hadn’t been
near this drawn out, having rubbed himself against this very pillow with no
control whatsoever. Papyrus, however, benefited from his big brother’s
experience and soon was coming with a loud shout and several sharp, jerky
thrusts. Sans held him through it, phalanges never stilling. When he was done,
Papyrus slumped, worn out by the new experience.
“BETTER?” Sans asked. Once again he felt a nod. Sans contemplated having
Papyrus help him out in turn, but refrained. His brother was already completely
overwhelmed. He would just have him return the favor later. “GOOD. GETS SOME
REST.” Instead he stroked gentle patterns against Papyrus’s skull until his
breathing went from rough and ragged, with the occasional sniffle, to slow and
even. Just as he was about sure that his brother had faded into sleep, he
shifted slightly.
“thank you, sans,”
“OF COURSE. I’LL ALWAYS TAKE CARE OF YOU.”
***** Mating Season - Cherryberry - Rape, Oviposition, Bestiality *****
Chapter Summary
     Blue lamia using Red as a mate and Lyco suggested Blue making Red
     carry the eggs, which was <3 and this ended up a lot longer than
     usual.
     Warnings: Noncon/Rape, Hypnosis, Oviposition, Bestiality, Body
     Modification
Chapter Notes
     A drabble that got out of control in part thanks to Lyco
     (Tumblr|AO3), who drew some amazing art to go with it!!
Sans was distracted from trying to free his left leg from the ever-present
coils of the lamia by movement. He was filthy, tired, and he wanted to go home.
At least the damn thing couldn’t keep him under its spell while it slept. It
did, however, have enough instinct to wrap him in its body during those times.
He was almost free, but his captor was starting to move.
The lamia lifted its torso and stretched its arms. It was slow to get moving,
usually, since it needed the warmth from the sun to heat its body. Sans might
be able to get free before it could follow him.
“There!” He pulled his leg out from the coils and prepared himself to jump down
from the huge pile of tail. Hands grabbed him before he had the chance. Sans
panicked, thrashing in its hold. It only used its hands when it was going to
breed with him, which it had done repeatedly since bringing Sans back to its
burrow. It wasn’t a natural pairing, and the lamia exerted a lot of force with
its muscular tail. He had only been able to make this attempt because he had
gotten several days without such treatment. It was all lost if it did that now.
The lamia stuck its skull down by Sans’s pelvis, blue eyelights intent on
something. Its forked tongue tickled the bone, making Sans wriggle.
“Stop that you stupid creature,” Sans grumbled, kicking his legs. The lamia
didn’t listen, moving close and smelling his pelvic inlet. When it lifted its
skull, its eyelights were wide. Sans felt his body start to relax almost
immediately. “Oh god…damn…”
He fell into the stupor that the lamia used to control him, his body starting
to behave against his will. Except, instead of the strange genitalia it usually
made him form, his body made something more along the lines of a human cunt
attached to a sack of magic that sat between his ribs and pelvis.
“Wha…?” Sans muttered, but of course the lamia didn’t reply. It started to
uncoil itself to free the end of its tail and press its opening against his.
Nothing happened at first. Then the lamia started to wriggle against him, the
tail pulsing with movement from inside. Sans was perplexed up until something
touched the magic around his pelvis. The texture was smooth, but he felt it
give as it began to penetrate him. It narrowed until it fit easily and slid in
through his magic to the sack. As soon as it was done, another pressed against
him.
Summoning the last of his own willpower, Sans tilted his eyelights down. A
splotch of white floated in the sack, unmoving. While he pondered what it was,
the next was pushed through. It joined the first, then another and another.
Fuck, were those…eggs? Sans panicked again, trapped within his complacent body.
The lamia didn’t show any signs of stopping. Egg after egg was deposited into
his body, slowly filling the sack. Sans got worried as it reached capacity, but
it swelled to fit more. It caused an uncomfortable stretching sensation, and
magic was starting to get sore, too. Even though the eggs were soft, the
constant repetition was wearing it out. How was he ever going to escape like
this?
The eggs eventually slowed down, thankfully. Sans felt like he was to the point
of bursting, but it never happened. His magic happily accommodated the lamia’s
eggs by ballooning out. He was pretty sure he wouldn’t be able to walk even if
the damn thing released him from its hold. Not that he got a chance to try.
When the last of the contractions ended and the final egg had seated itself
within his body, the lamia drew its tail back and began to sluggishly coil up,
with him at the center. It seemed to have some instinct that he couldn’t flee,
or maybe it was just wary of crushing the eggs, because it didn’t actually wrap
around him. It made its body into a kind of nest, placing him in the center. As
soon as he was settled it smiled down at him, its hands reaching out to rub
over the aching magic of the sack.
Sans wanted to shove it away. He wasn’t ready to be treated like the lamia’s
mate or some shit. All he could manage to do, however, was pass out.
***** The Way You Make Me Smile - Ketchupberry Fluff *****
Chapter Summary
     A prompt from Lyco
     ‘it’s an uncommon ship but i think they’d both see their papyruses in
     each other and be like, “i like you because you’re like my brother
     except not! is that weird?"’
Chapter Notes
     Another drabble that got kinda long. Maybe not in onshot territory
     really, but it don't belong in small bites. So here it be. Have some
     therapy fluff. <3 Hope you enjoy!
“You’re as bad as Papy, you know that, right?” Blue was having trouble keeping
his expression straight. He wanted to glare, but his stupid mouth kept
twitching upwards in reaction to the pun.
“Oh no,” Sans fake gasped, and Blue could see his grin through his hands as he
brought them up, as though scandalized. “I can’t let that stand. I’ll have to
find a way to get back into your good graces.”
Blue conquered his smile and gave Sans the full force of his glare. He put on a
properly contrite look in response, but Blue wasn’t fooled. Sans was still
smiling slightly.
“Don’t think it’s going to be that easy,” Blue warned, crossing his arms.
“Aw, come on,” Sans scooted closer to Blue on the couch. Their pants were
brushing now, and Blue felt his face warm slightly. That was not the reaction
Sans’s behavior deserved.
“You know I can’t help it. Puns are a part of who I am. You could say they’re
in my bones.”
“Saaaans,” Blue whined, unable to moderate his reaction to this latest truly
awful pun. Sans, laughing at his own bad joke, leaned in and hugged Blue,
crushing their bodies together haphazardly. Blue could feel the thick jacket
Sans wore cushion what would have probably been some painful meeting of bones.
A little of his warmth was peeking through the fabric, which Blue blamed for
how hot he suddenly felt.
“Sorry, sorry, your reactions are just so cute. You and Papyrus are just too
much fun.” Sans said against Blue’s skull.
Blue sobered a little at the mention of Sans’s brother.
“Sans, about that, about why you- we…” Blue looked down past Sans’s blue sleeve
to the floor. “You always compare me to him. Is that why you… and me…?”
Sans’s grip stiffened, but he didn’t release Blue. He actually pulled him
closer, leaning back so he was sprawled against the arm of the couch, Blue
tucked up against him. It was a familiar position and Blue found himself
settling into it despite his reservations.
“Kind of,” Sans sighed, lifting and lowering Blue slightly with the breath,
“but not like you might be thinking. Yeah, you remind me of Papyrus. I get the
feeling I remind you of Stretch, too.” Blue flushed at the, entirely too
accurate, observation.
“But I’m not using you as some kind of… substitute.” Sans rubbed Blue’s back
gently. “Just like Papyrus, you make me… happy,” Sans continued with a touch of
wonder in his voice. “And in some ways that he doesn’t, as well.”
A soft kiss brushed across the top of Blue’s skull. Blue smiled into Sans’s
chest, giving in to a full-faced flush. He was relieved to hear that. Sometimes
it felt like he was in the shadow of Sans’s brother, who he idolized so much.
He felt insecure and uncertain about San’s affections. Wrapping his arms around
Sans, Blue turned his skull so his mouth was free.
“Yeah, you are a lot like Papy,” he admitted, “and it’s kind of the same for
me.”
Sans laughed, squeezing Blue. A firmer kiss followed the first one, and when
Blue tilted his skull up he got one on the teeth too.
“We’re quite the pair, aren’t we?” Sans asked. Blue giggled. Being open with
Sans made him feel so much better, like maybe this could work. He smiled and
kissed Sans back.
End Notes
     http://idontevenknowwhattoputhereugh.tumblr.com/
     My tumblr is where I: take requests, post streams, chit chat, do
     teasers, try out new fics, reblog a lot of skeleton porn, pimp all my
     favorite fics
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