Is Ryan Seacrest’s Girlfriend Julianne Hough Cheating On Him?

In this picture, we see Ryan Seacrest's girlfriend Julianne Hough, but that's not Ryan she's rubbing oil on?  Maybe I'm just trippin, but I don't expect my girlfriend to be on a beach wearing a sexy bikini and rubbing down some other dude.  Just not cool in my book.  How do you pronounce this girls last name?  Hoe right?