S-4 stares up at Papyrus with completely unbridled awe. It's him. It's a him that's grown up, and become very cool and talented. It's a him who's always protected his brother, and isn't even scared of failing.

He's absolutely incredible. So much better than S-4 imagined he would be. Will S-4 ever grow up to be as cool as him? He can only hope...

He carefully takes the offered hand, grinning sheepishly. This cool, confident skeleton thinks he's just as cool? That's impossible!

"I-I'm really not as cool as you! But thank you. I'm excited to patrol, too."

Mainly, he's excited to explore the forest, but he assumes that will come with patrolling.