Grace Quek (Chinese: 郭盈恩; pinyin: Guō Yíng'ēn), known professionally as Annabel Chong,[1] is a Singaporean former pornographic actress who became famous after starring in an adult film that was promoted as the World's Biggest Gang Bang.

[6] She was a student at Raffles Girls' School, where she was enlisted in the country's Gifted Education Programme and Hwa Chong Junior College.

[2] After taking her A-levels, she took three gap-years, including a year spent in the United States, before going on to study law at King's College London on a scholarship.

Acting on the understanding that male participants who had verified a recent negative test for HIV would wear a colour-coded tag, Quek had sex with some men without a condom.

Loretta Chen viewed Quek's work in pornography as an attempt to challenge the settled notions and assumptions of viewers about female sexuality and gender boundaries, but was not taken seriously enough.

According to Quek, she sought to question the double standard that denies women the ability to exhibit the same sexuality as men, by modelling what a female "stud" would be.

[9] In her March 2000 appearance on the radio program Loveline, Quek admitted that there were slightly fewer than 70 men in her gang bang and that there were water and lunch breaks during the ten-hour shoot.

The event also prompted author Chuck Palahniuk to write a novel, Snuff, about a fictional character who aimed to surpass Quek's record by having sex with 600 men.

[2] It includes footage from the gang bang shooting and her subsequent publicity appearances, explores her motives, revisits with her the site of her rape and depicts a painful conversation in Singapore between Quek and her mother, who had not known about her daughter's porn career before then.

[8] In the film, Quek stated that she intended the World's Biggest Gang Bang to challenge "the notion of women as passive sex objects," and added, "We're not wilting violets, we're not victims, for Christ's sake.

In limited correspondence for the biographical play 251, she told the producers, "Do whatever you want with Annabel Chong because this person doesn't exist anymore.

[12] In 2000, while working in a strip club, she role-played as a student learning how to write computer code, while her client would spank her whenever she made a mistake.