Yandere nightmare!sans x female!reader

Hello guys! I'm back and I'm re-writing this story! I felt like it wasn't that good so I decided to,like I said,re-write it! hope you guys enjoy! *gives everybody hugs and cookies* by the way,I give credit to the person who drew the picture I'm using as the cover.one more thing,I swear:this will have violence,swearing,and a lemon at some point,so yeah.