Geno was over at blues house at a time when papyrus wasn't home for once and the two were hanging put like usual.

Blue had sweat pants on and a t-shirt, making the boy sweat since it was a hot day. Geno watched as blue kicked off his pants and sighed as he felt a bit cooler without the pants on.

Geno blushes at the sight of blue in his underwear and he looks away, starting to feel hard. He curses at himself in his head as a blush covers his face.

Blue looks up at geno and give a look of concern "you okay babe?" He asks and geno nods "y-yeah I'm good" geno replied and blue didnt believe him. He looked down and noticed the buldge forming in his pants

"Are you hard?" Blue asks and geno looks at him and gives an embarrassed expression.

"M-maybe?" He says and blue giggles

"Well you wanna go for a round or two?" He suggest and geno runs the back of his head gently "s-sure, if you want to" he says and blue nods. Crawling over to his nightstand and grabbing some lube from the drawer. He crawls back over and hands geno the lube. The taller takes it and once he does, blue starts taking his shirt off and then slides his underwear off slowly while maintaining eye contact with geno.

Geno swallows hard and smiles "get on all fours" he commands and blue nods getting on his hand and knees, geno enjoyed the view from where he was sitting as he began to strip

Blue wiggles his ass at geno as he waiting, feeling himself get aroused as well. Geno poured some lube onto himself and a little onto blue as well. Once done he crept behind blue and slid his dick into the smaller. Blue squirmed a little as he started to feel full again. "Ahn~" he moaned slightly as he collapsed onto the mattress.

Geno wasted no time as he started thrusting into blue. Geno would've enjoyed getting to see the cute expressions blue made as he was fucking him but it wouldn't hurt to try something slightly new.

Soon erotic noises filled the room over the constant slapping sound. Geno grabbed at blues hips in attempt to pull the smaller into the rough thrusts. Slightly digging his nails into the boy's ectobody.

Blue clenched the sheets under him as he felt himself reach his climax. Tears filled his eyes as he let out a whine as geno released into him making him cum as well. The two lovers panted as geno pulled out. And collapsed on the bed. Blue crawled over to geno and fell asleep, geno doing the same

(Hope you guys enjoyed!)