SINCE YOU'RE going to want to know who the lucky assistant in Genevieve Morton's topless twirl is, that's none other than beloved photographer Yu Tsai. And yes, he is the luckiest guy in the world, and yes, he has the best job. I'm just saving you the effort of having to point that out.
Watch it in motion below.
More from SwimLife
GALLERY: Gen on, and off, but mostly on her game (FULL SIZE)