Do NOT take.
Best. Moment. In. The. Fanfiction. Why? Because Undyne is scared until she realizes that Sans is in control of himself. The best two lines follow as: Undyne: I thought you were dead! Sans: I was. Kinda. I got better. Seriously. Best. Moment. Ever. I just realized that's like the only fanfiction that Undyne and Sans interact a lot I've read. Well, whatever. Go read this story! It's on tumblr!