(You can be either a monster or a human!)

Sans the skeleton, the lazybones, or whatever you want to call, you two were buddies a long time ago, ride or die. You also managed to maintain a friendship with his younger sibling Papyrus as well.

You were wandering around inside the judgment hall for no absolutely no reason while Sans was on sentry duty and Papyrus was in the forest of Snowdin creating new puzzles, leaving you alone.

Your soul appeared and glowed blue on your chest. And without realizing what was going on, you abruptly levitated back, only to be dipped by Sans himself, despite the fact that he was only half your height. He smiled and said, "Did I catch you off guard, kiddo?" He said before he hugged you, lets out a soft chuckle.