[Just a couple of years, then. Not so long that it's the reason Sans is the way he is, but maybe he's gotten worse these last couple years. Papyrus's last couple years, instead of Sans's. He barely has time to be annoyed by the complications of even thinking about all this, before his brother's throwing a whole extra wrench into it with another confusing comment.]

Some... other Sans...? [He turns to stare at his brother again, discomfort be damned, and he's glad to see Sans at least minding appearances enough to be wiping at his face. That's something.] What does that mean, other Sans?? I thought it's a loop. Like a tape playing over and over. Are there other timelines, floating around out there somewhere...?

[Because they just had a chat about storybooks not being real, and he didn't mean it would be okay if it was comic books instead.]