Board Thread:Questions and Answers/@comment-27491885-20151228162741/@comment-32915036-20170821160543

I personally think Sans, Papyrus and Wing Ding were triplets, with all of them having different goals in life. W.D wanted to become a scientist, Papyrus wished to be a guard, and Sans wished to make people laugh and enjoy themselves. To make money, Sans worked as W.D's assistant, along with Alphys and potentially Papyrus. After W.D's falling, Papyrus and Sans moved to Snowdin, with Papyrus apparently forgetting the incident. Years later, Papyrus and Sans joined the guard, with Sans becoming more responsible as the years went on, abandoning his goals and only focusing on his brother's happiness. I think the brith order was Wing Ding, Sans, Papyrus, but it could be Wing Ding, Papyrus, Sans, and the two just get it mixed up.