Intimacy is the subject here, told as a kind of exchange. The speaker begins by insisting they belong to themselves, then offers to lend their lips and skin if the other person will do the same. It reads less like a transaction than a gentle invitation: each person gives something and receives something back.
The imagery is mostly electrical. Touch becomes a "current," kisses "complete our complex circuit," and tension builds and then flows between the two people. Music appears too, with a "crescendo" and "harmonies," and the silence is filled with unspoken words. The speaker seems tender, trusting and a little amazed at how connection works.
The small shift in the repeated lines shows the poem's movement. "My lips, my skin" becomes "your lips, your skin," then "from your lips, over my skin," and finally "our lips, our skin." Two separate people become one shared experience, and the mood settles from charged excitement into calm, quiet rest.