They had just passed Muffet, this time successfully, before their legs gave out. They were slightly behind Sans, and their “good” arm reached out to grab at his sweater. The hand he was holding fell from his grasp, which is what really alerted him something was wrong. He turned, heart swooping in distress to see them fallen. It looked pitiful, they looked on the edge of death. He shook off the thoughts that said his sweetheart wasn’t going to make it.
Frisk didn’t talk anymore, too much effort on their strained lungs, but he knew, he knew, they were trying to apologize for holding up the process. He turns, crouching to grab both of their arms. “It’s okay sweetheart, but can you stand for me?”
He helps them up, sure that it was a misstep that was his fault. He was doing terrible at making sure they walked well. Instead, when Frisk went to stand, their legs locked and they tumbled straight into Sans. He could hear the way they were breathing, short pants with an occasional sound scraping from their mouth. Standing was too much.
Sans looked at them, really looked at them, and could see they were on their last -uh- leg. A RESET wouldn’t fix it, he was sure nothing was going to fix it down here. He moved the flower off his shoulder, tears threatening to spill over. Asriel looked shocked, but didn’t say anything.