A travelogue on Puerto Rico

So I was flipping through the channels and came upon what appears to be a travelogue on Puerto Rico.  Beautiful sandy beaches, lovely shots of buildings in the "old town" and a demonstration of native dancing.  Very nice, but wait, what are all these improbably beautiful bikini-clad women doing in the foreground of every picture? Cut to commercial and then "Welcome back to Victoria's Secret Swim 2015". So now I understand what they're doing there, but that brings up another question.  How do they air brush all those bodies while they;re running around or rolling in the sand?  Those cannot be their real bodies.  Sour grapes?  What do you think?