His Toy

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, ev...

Darling! ( Mettaton x Reader )

Warning! This story may contain spoilers for the pacifist run of Undertale, so made sure you've finished that first! There IS NSFW/Lemon in this story, but it is only for a brief chapter-and it is not required that you read it. You've been in the underground for a while. You're only a human, but you've decided to sta...