This quote is referring to the idea that sex appeal is not based solely on physical appearance. It can also come from a person’s confidence, attitude, and actions. The speaker is saying that their sex appeal is not determined by what they look like or where they are, but rather the way they present themselves. They can be attractive, regardless of whether they are standing in the rain or picking apples from a tree. This idea emphasizes that a person’s sex appeal is much more than their physical measurements or appearance.