Also burning up our "heat index," getting a bikini body over 40. And when it's time to hang up the two-piece. The stars make it look so easy. But you don't need to have a personal trainer to make it... See More
Also burning up our "heat index," getting a bikini body over 40. And when it's time to hang up the two-piece. The stars make it look so easy. But you don't need to have a personal trainer to make it happen, to look good in that bikini. Abc's juju chang has the story. Reporter: Hollywood's hottest celebs are steaming up the beaches this summer with their teeny wienie bikinis. Bombshells like rihanna and miley cyrus have been spotted with a lot of midriff. This body has gone viral. Heather locklear, at 51. Nobody moves that more than heather locklear. Reporter: Some of hollywood's hottest bikini bods are over 40. Celebrities like j. Lo, demi moore, and naomi campbell move that age is just a number. After two kids, you don't look so bad. I'll do it. I'll rock the bikini on the beach. Reporter: This is like hi, I'm grandma. We stopped by canyon beachwear, to find out how real women of a certain age can feel comfortable rocking a bikini. It's not an age. It's a comfort and how good you feel about the suits. Reporter: When is the time to give up the bikini? When she doesn't feel it's the right fit. Reporter: Here are a few other potential deal-breakers. Stretch marks, saggy skin. Is it a work function? Or there kids around? Luckily, there are a few tricks that allow you to cover problem areas and allow you to feel sexy. This is a monkini. Reporter: Try a tankini. And a lot of people have that as a problem. The skirt. You have a sexier stop, but the bottom is more covered up. Reporter: For "good morning america," juju chang, abc news, new york.
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