☠💀skeleton fan service💀☠ on X: Val/Readers from the Top 3 AUs. #undertale #undertalesans #underfell #underswap #persona #selfship #sansxreader / X

☠💀skeleton fan service💀☠ on X: Dissociative Identity Disorder. #undertale #undertalesans #underfell #underfellsans #underfellau #dissociativeidentitydisorder #emberandnember / X

ravvi

Here is Fell!TS!Swap, basically Underfell but TS!Swapped : r/CanonFell

Sanstheskeleton Stories - Wattpad

Skeleton Reader Stories

Sans, Underfell Wikia

Skeletonreader Stories - Wattpad

regret is not allowed in this country — My Swapfell and Swap G!Sanses as human girls, cuz

Swapfell Stories - Wattpad

CEO of making you simp for skeletons — smh sans

Skesgo's Closet

☠💀skeleton fan service💀☠ on X: No no, keep going, don't let him stop you. #undertale #undertaleau #sanscest / X

Skeletonreader Stories - Wattpad