Double take

I was wandering about the web when I came across the now defunct Mean Girls Guide to SL blog. (Its successor is The SL Revolution, for those interested.) One article wished a fellow happy birthday, and featured a photo at which I did a double take.

I double checked to make sure I didn't misremember, and I didn't. Humans have six abdominal muscles. Count 'em, six. The number visible in the photo: eight.

So, I'm curious: how common is that? Have you seen a non-anatomically correct skin? (We're not talking about the well-known omission from the male avatar.)