Yeah, not necessary, buddy. [It's written all over their face.

... He honestly doesn't know how to approach this situation. How did Frisk do it? If he had to talk to himself post-transformation, he would have gone insane.

Well, at least they can segue back to the nickname conversation.]

No. I already CHOSE a perfectly stupid name for myself. [He continues brushing them, piling up all the fur.] Why 'sunshine', anyway? Let me guess, mocking my bright and sunny personality?