Optimus remained silent until Ratchet was outside, then he whirled on Megatron, optics blazing.

"...Not entirely."

The Prime stalked forward, all of the way up to the berth, engine rumbling. He looked Megatron up and down, optics lingering on the still-parted chest plates, and the ports contained within.

His own clenched and the pressure surged, almost driving him to sway on the spot.

"I am developing a...hunch. Lie back down."

It wasn't a request.