"When I was two years old, my dad got me a bikini from Australia. I have that picture and that looks really cute. So, from that time I have been a girl who loves sun and beach," the 34-year-old said here Monday after she was declared the brand ambassador of India Resort Wear Fashion Week.
"So, it's something which comes naturally to me. It's not definitely to create a screen image, I am very comfortable off-screen also. I am totally a beach bum," she added.
Bipasha has donned the two-piece in films like "Dhoom 2" and "Players".
Asked which Bollywood actress she feels looks confident in bikinis, she said: "I think Zeenat Aman, at some point, was the hottest actress ever.
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"She is iconic, and to match her sexiness is tough for all of us contemporaries.
"In today's time, all girls are fit and look hot and glamorous. I think anyone can look good in a bikini.
"It's just the factors - you need to be little confident. It is not about wearing a bikini, it's about wearing your confidence more," she added.
Bipasha will soon be seen in Suparn Verma's horror thriller "Aatma" that releases March 22.