Requested by CinnomonrollSans so shoutout to her.

"PAPYRUS!!!!!!!!" Sans screamed suddenly.

Said skeleton jolted awake, right eye glowing orange, he was sleeping on the couch again, "SANS!! WHERE ARE YOU? WHAT'S WRONG?"

"IN MY ROOM! AND I HAVE A PROBLEM!"

Papyrus teleported to his brothers door, practically kicking the door down. He saw Sans on his bed, a pillow between his legs, with a shocked look in his neon blue eyes, Papyrus huffed as he scanned the room, finding nothing harmful his eye died down and he looked at his brother.

"UH, SANS? WHATS WRONG? I THOUGHT SOMEONE WAS IN HERE."

"What?? No no, brother I summoned you because unfortunately there is a puzzle that even I, the Magnificent Sans, can't solve." Sans looked down at the pillow.

Papyrus rose an eye ridge and walked towards him, "A. . .PUZZLE?"

Sans motioned for him to come closer, which he did, kneeling in front of his little brother who seemed more nervous than before.

"SO WHAT'S WRONG BRO?"

"I-It won't go down. . ." Sans answered in shame.

Sans slowly removed the pillow, revealing a large bulge in his pants, his light blue blush becoming a shade darker, Papyrus' eyes went wide. His brother, his sweet innocent lil blueberry, has an erection. . .and it doesn't seem like he knows what to do with it. How adorable!

"Will you help me brother?" He asked with pleading eyes, making him look even more cute and innocent than he already is.

Papyrus blushed a bright orange, his bones rattling slightly but not enough to be heard, he started to stutter a little too.

"I-I DON'T TH-THINK I SHOULD-"

"Pleeeeaaasse? I feel really hot and I want it to go away." He panted, his bright blue eyes getting bigger and bigger. Damn, why did he have to be so cute?

"FINE. . .ANYTHING FOR MY LIL BRO," he sighed, "JUST TELL ME IF IM HURTING YOU, KAY?"

Sans hummed a 'yes'. Papyrus sighed hard as he looked at his brother's hard on, how such an innocent creature could be going through one of the most non-innocent things a monster could go through Papyrus didn't know. Papyrus just prayed he would survive this.

The older skeleton gently rubbed his brother's groin, earning a sudden loud moan from him, Papyrus felt like he was going to die. He looked up at his brother's blushing face, mouth slightly parted, heaving for breaths, eyes wavering in size, man it was a sight to see.

He gently pulled up his brother's shirt, playing with his ribs as he moaned softly, Papyrus leaned forward and gently licked Sans' sternum causing the younger skeleton to squeak in surprise. Rubbing, licking and fondling a bit harder, Sans moaned more frequently, placing his hands on top his brother's, urging him to go faster. Papyrus could feel a nose bleed coming along but he had to hold it back, even if he didn't have a nose, he was wasn't a pervert but wouldn't yours bleed too if you were in this situation? He knows Undyne would definitely would though.

The bulge in his pants started to grow more and the fabric looked like it was about to rip, Papyrus made a bold move and pulled down his brothers pants, his bright blue ectomember literally springing from the cloth confines and twitching. Sans sighed as the pressure in his groan was alleviated. The neon blue glow illuminating between the two, Sans panted hard and whined when Papyrus stopped and stared, making him even more nervous but slightly more aroused than before.

Papyrus' sockets glazed over like he was in a trance, lowering his head until his mouth wrapped around the head of his brother's member. Sans hissed and bucked into him, stuttering his name in pleasure. Damn he tasted good, like actual blueberries. He slowly lowered himself more on his member, sucking softly and using his tongue more, Sans hissed as he sucked him off, moaning and bucking even more. Sans' head felt light as his cheeks grew darker in color, a tingling feeling spreading from his crotch to the rest of his body. Before he knew it, his body convulsed violently, spurting blue cream into Papyrus' mouth.

Papyrus slowly lifted his head off of his brother's own, the neon liquid dripping down his jaw as he swallowed. Sans panted as he came down from his high, glancing at his brother and finding a bulge in his pants too.

"B-Brother, do you have the same problem I have? Your pants is glowing."

Papyrus suddenly looked down and blushed bright orange, damn his hormones!

"I-I'm good, b-bro."

"No you're not, your voice is low, it's only low when your upset or angry." Sans narrowed his sockets, Papyrus stiffened under his gaze knowing full well that his bro read him like a book.

Sans switched places with his brother and made him lay down, Papyrus protested but the determined look in his sockets told him there was no way out of this now. Sans nervously conjured a hole, rubbing himself on his brother's length slowly, Papyrus moaned gripping the sheets, it would be a lie if he said he didn't feel good against him, but that would only be if he said it out loud.

"A-Are you sure you don't want me to prepare you?" Papyrus said worriedly.

"I can handle it, just relax brother." Sans purred.

Sans guided the neon orange length to his blue entrance, moaning softly when it prodded him, he shuddered hard when just the tip of his large girth entered, gripping his brother's hoodie tighter. Papyrus suddenly sat up and caught his brother in a kiss to distract him seeing the pain in his sockets, they locked tongues and Sans slowly went lower, whimpering and whining sometimes when gone too fast. Sans could only go halfway without feeling pain, shuddering too much when he tried to go deeper.

"I-I can't go a-any lower," he whined, he oh so badly wanted to continue, the throbbing in his own member was increasing, but he just couldn't move. Papyrus firmly gripped his hips, kneading the bone slightly as he slowly raised him up, "Brother? What are you doing?"

He looked into his brother's eyes and saw lust, deep orange lust in the shape of a heart, Papyrus forcefully thrusted upwards, pushing himself to the hilt inside his brother. Sans bit his lip hard and his eyes crossed in pain but Papyrus didn't notice, he licked his neck and fondled ribs after pulling his shirt off completely, grinding his member into his brother's ectoass. Sans wrapped his arms around his neck and met his thrusts, bouncing more easily on his brother's lap, he moaned loud when he hit a particular spot, biting his tongue to keep himself quiet.

Papyrus let out an irritated grunt when he saw Sans restraining his sounds, having none of that he reached under and inside his ribcage and grabbed his soul. Sans howled in pleasure, his bones rattling wildly, he groped and thrusted harder into him, the bed creaking softly under their movements. Sans started to feel a tingling sensation spread from his groin to the rest of his body, the same one from when Papyrus helped him before, and he also felt his brother twitch inside him. Was he close too? He thought.

His touches got more needy as each second passed, he twitched more inside him too, he licked and sucked on his neck more as Sans' moans and pants of pleasure grew. One last deep thrust sent him over the edge, convulsing as he pumped his brother's entrance with his ectosperm, hugging him tight as he buried his face in his neck. Sans came just after, the sudden gush of warmth and wetness tipping him over the edge, a satisfied sigh left him as he felt his brother's thrusts slow to a halt and the excess dripping out of him.

When Papyrus woke up he was on his back and his head in a pained haze, it wasn't until he felt a shifting figure on him that he remembered what he did a few hours ago, silently freaking out as he saw Sans sleeping on him.

"S'okay brother," or so he thought, "I'm fine," he yawned, "just go back to sleep. . .please?"

He knew this was not fine, nothing that happened before was fine, the only part that was fine was the actual sleeping part which happened so often it was normal, but he was too tired to continue thinking about the hell he will most likely be in later. He settled back down and wrapped his arms around his brother, putting him in a protective hold as he fell asleep once more. Sans smiled in his sleep feeling more warmth from his brother, feeling closer to his brother now than he has ever been.

I wasn't sure if this was supposed to be lemon or fluff so please don't kill me ^^;

Anyway, so instead of just limiting requests to just Tale, Swap and Fell AUs I've decided to do any AU you request whether it be something like Aftertale or Errortale. See Chp 11 of my randomness book for more details. That's all folks!

Until next time :3