Veteran actor Huang Wenyong's daughter, who was only 20 years old at the time, had posed in a bra, jacket and pants for the studio photos, which were taken by a freelance photographer.
Huang was reportedly upset by the pictures, which Miss Ng had posted on her blog and which were subsequently published in evening Chinese daily Lianhe Wanbao.
Four years on, Miss Ng has shed her clothes again, this time for a sexy eight-page picture spread in this month's issue of men's magazine FHM Singapore. In it, she shows off her buxom figure in a bra and pyjamas and the shoot is styled as if she has just got out of bed.
Huang died of lymphoma in April 2013, when he was 60. But Miss Ng feels that if her father were still around, he would have no problems with the pictures and "would be proud of me".
Miss Ng, who stands at 1.74m and weighs 58kg, said candidly of the previous incident: "It was silly of me to do (it) as it was not tastefully done, and it wasn't pretty. This time, I had faith (in FHM Singapore)... (that) the pictures would look good."
CLASSY, NOT TRASHY
The freelance model agreed to the FHM photo shoot, arranged through her agent, on the condition that it must be classy and elegant, not trashy. To her, a sexy photo shoot is not just about showing off a woman's body in skimpy outfits.
She told The New Paper: "It is about bringing out the sensual and feminine side of a woman. I believe a woman's personality can shine through in a sexy photo shoot, too.
"I took on the photo shoot because I still have the looks and body for it as I am still young. I want to remember myself in this pretty state and I can show the photos to my kids in future."
Miss Ng, now 24, clarified that her late father had initially misunderstood the 2011 photo shoot, thinking she had posed nude. He was "very angry and upset" and "interrogated" her about it.
After he realised that the photos were not so raunchy, he "became less angry". But he still asked her to remove them from her blog.
After that, she promised her father that she would be more careful and she has kept a low profile until the FHM photo shoot.
She said: "Knowing him, I think he would nag at me as he was against this kind of sexy theme. But if he saw (the FHM pictures), he would be proud of me."
But what if he had said no to her doing the photo shoot? Miss Ng said: "If he had disapproved, I would try my best to persuade him. If he still said no, I wouldn't have done it."
But Miss Ng did get the approval of her mother, Madam Teh Kim Hua, who is in her late 50s and works in accounts. She laughed and recalled how her mother had reacted when she was told about the photo shoot.
"She said I was fat and even helped me go on a diet by preparing vegetables for me and reminding me not to eat fast food. She was very supportive and asked me to go for it."
She also tried to do a five-day juice cleanse before the shoot. But it failed after just a day because she was hungry and ended up eating more.
"I skipped breakfast on the day of the shoot as it started at 9am," she said. "I also tried to sleep before midnight the night before, but couldn't as I was nervous. In the end, I slept at 2am."
The photo shoot earlier this year took four to five hours. It was not too difficult for Miss Ng, whose biggest challenge was having to "suck in" her tummy.
On whether she will follow in her father's footsteps and enter showbiz, she said she prefers to keep her options open and she is not sure if she is cut out for the industry.
Miss Ng, who graduated from Singapore Institute of Management's business management course last year, started a courier delivery service in November.
While she would consider doing more photo shoots similar to the one by FHM Singapore, she stressed that she "won't do nude or topless shoots".
"That would be too much. It will be too controversial. People will judge me even more because I am Huang Wenyong's daughter."