Buster says "who you taking photos of?" and his buddies are ready to back him up!
On a more serious note, Buster is part of the large group of sea lions we found interacting with a pod of Humpback whales about 30 miles due west of San Francisco, out beyond the Farllon Is. They appeared to dive with the whales, and then where ever the sea lions popped up next, the whales would breach about 30 secs later. We coined the term 'whale surfers' on the boat :)