Mouth momentarily unoccupied, Orion kept his hands where they were, stroking idly along hips and teasingly close to that twitching interface array.

"I do. I've always loved watching you move." Orion confessed, optics gone bright as he stared down avidly, watching the tension and strain shape Megatron's frame.

Hands sliding between Megatron's thighs, he nudged them a hint wider before tracing the rim of his valve with the curve of his thumbs. Static charge sparking, Orion grinned, leaning easily to the side to press a kiss to a conveniently-close thigh.

"Especially when it's my doing."