A/N: prompt - What if Sam figured out Dean was Henry's father before Dean did?
"Regina is still at her office, so we should probably hurry…"
"Emma, you and Dean…"
Emma Swan gave a withering look. "What, Sam, we're talking about this? Now? I thought you guys were here to investigate Regina."
Sam scrubbed the back of his neck, looking at her sidelong and sheepish. "Yeah, we are, but…"
"But nothing, Sam. This is not the time or the place-"
"Does Henry know?"
The guilt on Emma's face was all the answer Sam needed. He sighed and glanced at his feet. "Does Dean?"
"No. And he won't. It wouldn't matter." Her eyes turned grave. "You can't tell him, Sam. Promise me."
Sam blinked. Then dipped his head, resigned. "How far is Regina's office?"