No, not Jessica Simpson. Not even Ashley Simpson.
Marge Simpson. I kid you not.
Heh - I didn't even need the "Not her, and not her" bit. When I saw your thread title, the first thing I thought was, "Well, it probably isn't Homer since it's Playboy, so that would be Marge."
Sure enough, that was right. I haven't watched The Simpsons in about five years or so, so it isn't like I am constantly thinking Simpsons.