Too far and too fast was probably not a good idea right now, though Megatron felt a twitching burn somewhere of want and need to push for more, especially when Orion deepened the kiss and his engine revved right after Orion's.

The noise of his heavier engine threaded together with Orion's, and the vibrations almost reached his protoform, causing Megatron to shudder faintly as he tilted his helm into Orion's hand on his jaw. He didn't care how just---

No.

Not yet.

Too soon, no matter what. Megatron ruthlessly beat back his urge to flip them over and go all out to tease Orion into wanting further, and instead just dropped his engine into a thrum when Orion's field reached his brushing against it.