Jessica Simpson Thinks John Mayer Has "Lost His Mind"

We were expecting Jessica Simpson to be rattled by John Mayer's recent comments to Playboy comparing her to "crack cocaine," but after we photographed her out the other night, it seemed like she could care less!

However, sources for Life & Style report that Jessica is a bit annoyed about John running his mouth, and she may share some less than flattering things about him to the press in the weeks to come! A source tells the mag:

“She feels like this came out of nowhere. She had no idea he was going to be talking about her like this. It’s shocking. She thinks he’s lost his mind ... She’s going to be doing a lot of press for her new VH1 series, The Price of Beauty. She knows she’ll be questioned about John again. If someone asks her about it, she will respond. That’s her revenge plan.”

Though Jess seems pissed about John spilling the dirt about their sex life, she might not necessarily disagree with the statement that she was like "sexual napalm"! The source told the mag, “Jessica told me she and John had amazing sex. She said they did things she had never even thought of."

So the question is, what exactly will Jess say about John when the time comes? And what about Jennifer Aniston?