Watch out, curves ahead.

For her new role in upcoming Channel U drama Marry Me, Jesseca Liu makes a dazzling transformation.

It's her first sexy role. She's Rainbow Ang, a smouldering seductress who owns a match-making agency.

As Rainbow, she has to teach her single girlfriends how to channel their sexuality to score with men.

The Singapore-based Langkawi-born actress, known for her girl-next-door roles, is currently relishing her newfound sex kitten image. To look perfect in a bikini on the show, the 1.74m-tall actress lost 7kg to weigh 47kg.

The downside to weight loss, however, was a smaller chest.

Liu, who is a B cup, revealed that there was "lots of padding" in her bikini top and bras so that she could be a more ample C cup.

Liu, 34, told The New Paper: "I wanted this role because I was so happy that I could finally break out of the sweetie-pie stereotype.

"I like being called sexy, but to be honest, the producers of the show were a little concerned at first that I wouldn't be able to pull it off.

"But after filming, they realised that there's a really sexy side to me after all."

"People tell me that the impression I give them is that I'm very 'niang' (Mandarin for girly), so I see this as a breakthrough."

Due to the large number of people on the set, most of whom were men, she couldn't help but feel eyes on her when she stripped down.

In one scene, which takes place in a hotel, Liu has to shake her booty while working a cleavage-spilling dress.

She said, with a laugh: "In the scene, a teenage girl wants a showdown with me so I wear my figure-hugging 'bandage dress' to show her who's boss.

"The dress was so tight that I felt that even a sip of water would make me burst out of it.

"What's worse than stripping, however, is having to dance. Although I took lessons, it still didn't come easy to me."

In the other "stripping" scene which was shot at the beach, Liu said that as she wanted to look flawless in a bikini, she had requested that the producers give her time to lose weight.

So the scene was only shot six weeks after filming began and being 7kg lighter made all the difference.

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