In her book "My Body," Ratajkowski, 30, accuses R&B singer Robin Thicke of groping her during the filming of the music video for his 2013 hit "Blurred Lines."
The video propelled Ratajkowski to stardom; she eventually signed contracts with high fashion brands and secured film roles in Hollywood productions.
Ratajkowski – who has 28.5 million followers on Instagram – has faced criticism over her allegations against Thicke on social media. Many people have commented that her claims are simply an attempt to boost sales for the upcoming book.
Australian comedian Celeste Barber, who "only" has 8 million followers on Instagram, is known for posting videos mocking celebrities on social media. She recently recreated one of Ratajkowski's photoshoots alongside the following caption:
"We are sick of you objectifying our bodies! Also, here’s my ass."
Many took offence to the post, slamming the comedian for being a "misogynist" and "tearing down other women."
"There is a difference between commenting on the objectification of women's bodies and internalised misogyny. This isn't it," one comment reads.
Others, however, found her post amusing, with one user calling it "the best."
"OMG, Emrata's book is so self-entitled, poor me BS. This captions it perfectly," another user wrote in the comments under Barber's video.
According to an excerpt from Ratajkowski's book published in The Sunday Times, five-time Grammy nominee Thicke returned to the set of "Blurred Lines" drunk before touching her breasts.