If you want the title to be a little inappropriate here it is skip this part if you don't the woman who gaster banged
Ms he probably died when sans and papyrus was born and their not twins she died after papyrus was born probably sans remembers his father so he might remember his mother if you don't believe me hear is how monster baby's are made when a Dady monster loves a mommy soul they come together and take some f their body parts like their soul and put them together the mother protects it Untile it forms the baby and j can come out if the mother is to weak the mother and baby might die or just the mother at birth the baby can share strangth with the mother of it wants to so yea that's the theorie
