Grace Dunham has broken her silence after sister Lena Dunham was accused of admittedly sexually abusing her when they were children. Grace did not directly address the alleged molestation, and instead denounced “heteronormativity.”

Lena Dunham canceled two public appearances after she was accused of molesting her younger sister based off an excerpt from her new memoir. The “Girls” star will not appear to promote “Not That Kind of Girl” in Germany and Belgium after Kevin D. Williamson, a columnist for the National Review, and Bradford Thomas, who writes for the website Truth Revolt, claimed she admitted to sexually abusing her younger sister, Grace Dunham, when they were children, E! News wrote Monday.

There are two passages that have been deemed unsettling. In one, the star remembers discovering her younger sister had put several small rocks in her vagina after Dunham “carefully spread [it] open.” When she told her mother about the rocks, “my mother didn’t bother asking why I had opened Grace’s vagina,” Dunham wrote. “This was within the spectrum of things I did.”

Lena Dunham Lena Dunham Photo: Reuters

Dunham also wrote in her memoir that she “took to bribing her for her time and affection,” giving Grace “three pieces of candy if I could kiss her on the lips for five seconds” and that “anything a sexual predator might do to woo a small suburban girl I was trying.”

The full excerpts can be read here, courtesy of E! News.

Lena Dunham has denied any wrongdoing and said her sister is laughing about it. She also unleashed a tirade against the accusations on Twitter. "The right wing news story that I molested my little sister isn't just LOL- it's really... upsetting and disgusting," she wrote. "Usually this is stuff I can ignore but don't demean sufferers, don't twist my words."

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