He had to resist laughing at the jump, since even if it was faint he could feel the tension and twitch under his foot... and the tension of Orion almost tilting his hips forward and resisting it.

Yes, he was absolutely a terrible tease, but it amused him... and distracted Orion further, though at least not enough that he didn't forget to keep quiet... or actually move into the touch.

As the kliks slid down to seconds, Megatron leaned forward again and, as the two breems were up, brushed his lips against Orion's crest while he slid his foot forward enough to actually press against the interface panel.

"There. We're done." Straightening back up, Megatron held out one hand for Orion, the other lingering on his shoulder. Despite the very... tame two breems, Megatron stayed alert for whatever reaction Orion might have.