He didn't mind having to reach up to kiss Megatron - it allowed him to press his weight against the larger mech, frame scraping noisily and encouraging him back, staggering slowly with each step.

He purred at the verbal concession, tongue lapping as he re-explored the depths of Megatron's mouth, jaws nipping lightly at his lower lip. It was probably only his imagination that there was a faint difference in taste. Probably.

But that didn't mean he wouldn't stop until he had lapped the foreign taste away.

Reaching up to cup Megatron's jaw and encouraging him to deepen the kiss was the only 'downward' motion he silently asked for, fingers sliding under armor to the base of his helm. He slipped a knee between Megatron's thighs, pressing up.