Sometimes the phrase "I could be persuaded", with a smile, works wonders.
And then maybe, when you're not in a flirty or sexual situation, just say "I like to be persuaded sometimes".
As she explained it to me, a lot of times she has to actually get started before her motor starts running, but once it does, she really gets into it and enjoys it... she just needs a little help getting started. That's what it sounds like you're asking for. You need a little help getting started, but you'd still enjoy and appreciate it.
a fine and enviable madness, this delusion that all questions have answers, and nothing is beyond the reach of a strong left arm.