UT/UF/US+ Lemons+Oneshots (Requests Closed)

Swapcest

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.