| All slapping really is, is hitting the string with enough force at a slight angle to make it hit the frets and bounce off, which is what that percussive sound is.
Given that, you can really slap with any part of your hand (or anything else, really), although having lower action would probably make it easier to slap with, say, the underside of your middle finger.
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"Aaah"...a sigh of pleasure escapes my lips as I run my fingers over her body. Her perfect, round curves leave me wondering, "How did I end up with her? Why me?"
But that thought becomes but a whisper, as I bring my fingers to gently caress her neck. Her beautiful, slim neck.
Then, without saying a word, I ease my hands down the length of her body, and slowly remove her G string... | 
