Look, this Starscream may not yet be the master manipulator that Megatron clearly knows him as, but he can read that body language pretty well. Starscream gives him a look up and down and says, very unconvinced, "Right."

This would maybe be a little funnier if Megatron being so into Orion wasn't a massive fucking inconvenience and personal pet peeve for Starscream, but it is decently entertaining, watching him struggle with himself. Mocking Megatron has never really occurred to him as a form of genuine entertainment, so this is sort of a novelty, but Starscream's curiosity has a greater hold on his attention.

"What about me? I mean -- not me, obviously," he says hastily. "But your Starscream. What was your relationship with him like?"