A sеxy model poses for photos during the 2016 Guangzhou Sеx Culture Festival in Guangzhou city, south China' s Guangdong province on November 10, 2016. The festival has featured the latest developments and technologies of Adult toys and reproductive health products in the country. (Photo by Asia Wire)

Models take part in the promotion of the Miss Bumbum (buttocks) beauty pageant, along Paulista Avenue in Sao Paulo, Brazil, on August 7, 2017. The annual Bumbum pageant to select the nation' s sexiest female buttocks will be held on November, 6 in Sao Paulo. (Photo by Nelson Almeida/AFP Photo)

A model presents a creation by British designer Vivienne Westwood as part of her Spring/Summer 2018 women's ready-to-wear collection show during Fashion Week in Paris, France on September 30, 2017. (Photo by Charles Platiau/Reuters)

Models struggle against strong wind before the rehearsal of Christian Dior's Haute Couture Spring-Summer 2017 live show to celebrate Dior's new flagship store on the rooftop of Ginza Six mall in Tokyo, Japan, April 19, 2017. (Photo by Toru Hanai/Reuters)

Model Kendall Jenner attends FIJI Water at HFPA's Official Viewing and After-Party at the Wilshire Garden inside The Beverly Hilton on January 7, 2018 in Beverly Hills, California. (Photo by Stefanie Keenan/Getty Images for FIJI Water)

A model wears a creation for the Andreas Kronthaler for Vivienne Westwood ready-to-wear fall/winter 2018/2019 fashion week runway show in Paris, Saturday, March 3, 2018. (Photo by Vianney Le Caer/Invision/AP Photo)

Models of the “Altyr” fashion theatre, dressed in Khakas national costumes, get over a wooden fence during a photo session, as a part of the rehearsal for the Tun-Pairam traditional holiday (The Holiday of the First Milk) celebration at a museum preserve outside Kazanovka village near Abakan in the Republic of Khakassia, Russia, May 28, 2016. (Photo by Ilya Naymushin/Reuters)

Project Mermaids model. Project Mermaids lets ocean-lovers don tails and live out their siren fantasies. Clients can pay for a shoot that is either on land or underwater, with the images looking to raise awareness about preservation of beaches, seas and oceans. The project – which is shot by photographers Angelina Venturella and Chiara Salomoni – started purely to raise awareness, with celebrities dressing up as sirens as part of the cause. (Photo by Angelina Venturella/Chiara Salomoni/Caters News Agency)