I played with fire once; Ashes on my lips, Singes on my back, And I'm still burning
I'm a whirl of smoke; Waiting for your flame, Hovering above, The match that you are.
The picture is that her being the match and me being the smoke (with a dead fire) & when you put a fire above a match with a whirling smoke, it lights up. Yes it's a euphemism for ***.