Pearl Necklace

This one has mature content - it is about a woman orally pleasuring her man. When he is done she has a "pearl necklace" around her neck.

While ZZ Top's songs can be highly offensive to sensitive ears, Billy Gibbons has an explanation why they tend to get away with it: "There is an advantage to being last in the record bin. I think when Tipper Gore got to Zappa, she just got so disgusted she didn't go any further."