Three girls and a dog - you decide which is which.

Mass Pillow Fight in San Francisco

Pam Anderson shows them how it's done

Since when was pillow fighting classified as a sport?

When guys fight, it gets a little more aggressive.

Then again....

In my imagination, this is what all girl sleepovers are like

I don't remember WWF being like this!

And here's the low rent version

Yawn - getting so tired, no energy left to fight. Let's just take each other's lingerie off