If he wants you on top, I don't think there's any way it'll be bad for him! Maybe you're afraid you won't know how to move just right for him, but don't worry - you just find what makes you happy, and let him lay back and watch you please yourself - that's what he wants anyway!

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Plug me into somethin'

If the theory does not conform to the facts, then the facts must be discarded.

No good deed ever goes unpunished

Never argue with an idiot. He'll drag you down to his level, & beat you with experience.