Board Thread:General Discussion/@comment-35443428-20181122214518/@comment-37870430-20190630171304

I'm extremely old and I know that you probably wont read this but, I don't think Gaster would be his dad. Take a look at how he behaves infront of him. He calls him G and stuff, Gaster is more like a close childhood friend or something. Aside from that, if you actually thought over your theory, Sans and Papyrus might not even know Gaster's his father.