“Honestly, no idea how it works.” His skin prickled under Finn’s touch and he felt his ears grow hot but he pushed it aside.

“Not a flawless system, though. It doesn’t always trigger mutually for two people. Sometimes it activates for one person and not the other.” But if Finn didn’t have one... well, maybe that explained it?

But he’d seen Rey’s. He hadn’t meant to look, but he couldn’t help it. It was activated too, even though she generally kept her arms wrapped right.

“I, uh- it’s not mutual.” He said with a shrug. “No one has activated for me. I don’t think. So. Not that lucky.”