[For an instant the trailer fills with fire, so sudden and bright that Papyrus can't see a thing. The burst engulfs even him, the flames and heat squeezing on his bones and hurting a fair bit. If he weren't so used to hanging out with Undyne, he might even mistake it for a violent attack. As the flames recede, he's covered in soot, outfit rather more tattered and charred than before. The weclome basket is crumbling, the food is charred, and the succulent looks so singed and dry that it might never recover.

On the plus side, the few surviving sparklers are sparking.

He forces a grin to his face, plopping the damaged gifts on a table, as he takes a closer look at his new roommate. They're far enough away to be a little difficult to take in all the details, but they look like they might be human? Also, a little bit on fire.]

Wow! You're really in the spirit of this thing! But, maybe tone it down a little? You're supposed to introduce yourself before the explosions.