I want Her (Underswap!Sans x Shy!Reader)

Yandere!Underswap!Sans x Shy!Reader And some Papyrus x reader -_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_- He was so sweet, so innocent. All he loved doing was cooking tacos, listen to his brothers puns, and try to be friends with everyone. Then you're pushed down a hole and end up in this strange new underground. After seei...

Wait how many mates?