Readerisasibling Stories

Taken up after a recent request, but will remain a sporadic indulgence due to fandom unrelated work. (/^\) I am glad, that there are still Undertale fans out there. QwQ I know there are already plenty of Undertale reader scenarios, but anyway. .. Might cover multiple runs on different timelines and universes when I get the time and motivation. I'm still open for request tho! (don't ask for lemons or something like that. I can't write that. Believe me, I tried and failed on a level that I had to laugh about it) So... anyway. .. Have fun!