Day 1: first time

                                    

                                          
Ship: ErrorxKiller
***
Killer is in Error's anti-void, watching the recordings from Undernovela with the glitched out skeleton, having a date there since Error doesn't really like going anywhere else but here or his room in Nightmare's mansion-
"..hey Error?" 
Error then looked away from the screen, down at Killer. "What is it?"
"Since you have a tv in the anti-void.. where do you plug the wires and stuff like that?" Killer asked Error.
Error then pointed over to a small portal, just give big enough for the wires of the tv to be plugged into an outlet in a random room.
Killer's gaze followed Error's hand, seeing that.
"Oh.. no wonder" Killer mumbled, his eyes turning away from the portal and back to the tv. "Honestly I don't get how watching security footage of a au is entertaining.." he said, getting a bit bored.
No answer from Error.
Killer looked at Error squinting his eyes a bit seeing that Error is flat out ignoring him right now due to the damn recordings.
The smaller skeleton huffed, slouching down into the giant beanbag chair before an idea came into mind, then a grin went on his face.
He stood up from the beanbag, going in front of Error and plopping himself onto the skeleton's lap.
Error then looked down, feeling weight on his lap, he wasn't surprised seeing Killer there since.. Killer is the only one with him-
"What is—"
Before Error can finished his sentence, he saw Killer summoning a body, what body? Error doesn't know since Killer didn't have his upper part summoned.
Error sighed, closing the tv knowing what Killer wants. 
"Front or back?" He asked the smaller.
Killer hums softly "any you want" he said, wrapping his arms around Error's neck as he grinds on him.
Error can't help but let a smile form, he cupped one of Killer's cheeks, pulling him into a kiss as he summoned his lower body.
Killer kissed back, one of his hands going down into Error's sweat pants, grabbing ahold of the yellow dick and starts jacking Error off.
Error groaned a little into the kiss, he then pushed one of his several yellow tongues into Killer's mouth, wrapping around Killer's singular red tongue.
Killer moans softly, continuing to rub Error's thick boner.
Soon after a few minutes, pre-cum started to leak out, the substance flowing down to Killer's hand, flowing over his fingers as a damp spot starts forming on Error's crotch spot.
Soon Error pulled away from the kiss, grabbing onto Killer's shorts and pulling them down quickly.
Nice thick thighs and hips alongside with an average sized dick.(feels like writing a McDonald's order tf-)
"Heh.. 'any I want' my ass Killer-" Error commented, chuckling a bit.
The smaller skeleton huffed a bit "well using the pussy would have high risks in pregnancy you know-" Killer said, taking his hand out of Error's pants.
Error nods his head before replying "I know.. but, it's our first time.. you already want to do anal?" He asked the smaller curiously and received a nod, then he pushed Killer onto the beanbag chair softener as he pulled out his hard and yellow dick that's glowing dimly.
Killer turned his head over to look at Error but then felt something being pushed into his ass.
The smaller hissed in pain, holding onto the beanbag chair "o—oh- shit-" he groaned out.. maybe having anal for your first time isn't such a good idea-
Error looked at Killer before chuckling, starting to thrust slowly "already giving up?" Error asked with a grin, blushing a bit at the tightness.
Killer moaned more, griping onto the beanbag chair tightly, his asshole literally feels on fire-
Soon Error started to thrust faster, causing Killer to moan more, gripping so hard that it kind of left a small rip on the beanbag chair.

Done-
Word count: 616
Sorry for the rushed chapter- I've been busy with other stories today-