Warning! There is a chance that there will be spoilers for the pacifist run of undertale. I recommend finishing that before reading this. There won't be any spoilers for the no mercy run, so don't worry about that! Also, don't worry about anything NSFW/lemon if that's not what you're into-there won't be any of that here. You're a human that's fallen down into the underground. You've decided that you'll stay instead of going home after fighting Asgore and sparing him. Now, you had made some great friendships while in the underground-but one of those friends in particular was one you'd like to be a little more than friends with... Aaaa an X reader fic! I haven't done one of these before, but I hope you still like it!

So...my first book. YAAAAAY...god I'm gonna screw this up. Heheh! ANYWAYS, hope you enjoy this! This is based off my OTP and the game Undertale. If you do not enjoy Sans X Frisk, then do not read it. Don't post mean and totally irrelevant comments. If you don't like, then just don't bother reading my stupid obsession! >:3 NOW THAT THATS OUTTA THE WAY, LETS BEGIN! NGHAAAAAAAAAAA!!!