I think "A Strange Boy" is one of Joni's sexiest songs, with its snakey lead guitar and the following lyrics:
We got high on travel, we got drunk on alcohol, and on love, the strongest poison and medicine of all. See how that feeling comes and goes, like the pull of moon on tides. Now I am surf rising, now parched ribs of sand at his side. What a strange, strange boy. I gave him clothes and jewelry. I gave him my warm body. I gave him power over me. Hmmm! Things are heating up already! Ruthie