[Billy's face is immediately red, leaning back as well with widened eyes. His hands grip the material of Teddy's shirt, static making little strands of his hair stick up in all angles, and he launches right into a flustered babble.]

Oh my god. Oh my god, I can't believe- that hasn't happened for like a year- I'm so sorry. Are you okay? That wasn't you, was it? Maybe it was you. Are you shifting into an electric eel now or something? Can you even do that?

[He pauses - mostly for air - and his gaze falls about half a foot to stare at something other than Teddy, which turns out to just be Teddy's chest instead, though he's obviously not really focusing on it. His fingers curl more tightly, breath catching a little as he takes in air.]

...That... wasn't you.

[A statement this time, not a question. A realization.

It was me.]