It's a Mettaton x reader but napstablook has something to do with it soooo yeah. Enjoy

It was a year ago when you fell down into the world of monsters and became a servant to the new king of the underground, Mettaton. But eventually you become more than just the typical servant... you start to fulfill his sexual needs. Mettaton X Reader (female), nsfw, dom, foreplay, masturbation, sex toys, vibrator, eventual bondage, romance, servant Cover artist: https://twitter.com/manlysparkle?s=21

Mettaton's bad dream becomes a reality. His other half Neo is real and won't be going away anytime soon. After all, he has an offer for the darling celebrity~. Where did Neo come from? Why is he here? And why can't Mettaton... fight back? Series: Undertale Mettacest, bondage, humiliation, foreplay, bdsm, dominate

A fabulous telling about your fabulous relationship with a fabulous robot! It's a pretty fabulous story.

This is le one shot.... And guess what? ITS A SMUT/LEMON Oooooooohhhh yeeessss~ Now, if your wondering why it's not tagged completed, well that's bc I might update with more lemony goodness oneshot shit.. WARNING: Obviously language, sexual interactions, and extreme sexiness (lol)