Tawny Kitaen is a beautiful rock star. No stretch there, as she's hot and in real life has been known to look better than a guitar hanging off a rocker. But in Crystal Heart (1985), she falls in love with an invalid suffering from some rare illness that keeps him isolated in a crystal room. He's no boy in the bubble, but he does get to mam-handle Tawny's bubbles in a long love scene that exposes almost all of her charms. For the bush de resistance, you'll have to wait for a disturbing sequence in which Tawny crashes through some glass completely nude. It'll give you a crystal heart-on.