Over 50,000 runners turned out for the 2013 New York City Marathon this week, and amongst them was the ever bouncy Baywatch babe Pamela Anderson. Pam may have a slight advantage thanks to all those slow-mo jogs she’s taken along the beach, but there are plenty of other titillating trotters achieving their personal breast, er... best with competitive running. The form is fine and the boobage is bouncy when sexy stars like Eliza Dushku, Jennifer Beals, and Katie Holmes hit their stride!