The case against embattled singer R. Kelly has taken yet another disturbing twist, as one of his accusers claims that in addition to sexing Aaliyah, he also seduced her mama!

Lisa Van Allen detailed the R&B singer’s alleged abuse against her in the Lifetime series Surviving R. Kelly. Now, she’s spilling even more tea to Vlad TV, alleging Kelly admitted to her that he had a sexual relationship with Aaliyah’s mother, Diane Haughton, Complex reported.

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“He actually stayed at their home in Detroit and her mother actually was sexually attracted to him as well,” Allen alleged. “He said when Aaliyah went to sleep, he would go in the living room and him and her would do sexual acts on the couch while Aaliyah was sleeping in the bedroom.”

The first episode of the 3-part groundbreaking docuseries features testimony from one of Kelly’s former backup singers, Jovante Cunningham, who says she witnessed his sexual encounters with underaged girls in the ’90s, including Aaliyah. But Diane Haughton  refuted the claim.

“The woman and so-called backup singer that describes seeing, meeting or ever breathing the same air as my daughter, Aaliyah, is lying and is a liar,” Haughton wrote in a public statement. “My husband and I were always on tour with her and at interviews and every place she went throughout her entire career. Whoever this woman is, I have never seen her before anywhere on planet earth, until now.”

Kelly and Aaliyah reportedly wed in 1994 with falsified records but their marriage was annulled within a year after “Her parents had the last say,” said Demetrius Smith, R. Kelly’s former personal assistant. He also recalled in the documentary that Kelly expressed concern that Aaliyah was pregnant.

Allen corroborated Smith’s allegation, claiming Kelly also told her Aaliyah was pregnant at the time of their illegal marriage.

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“The reason [Kelly and Aaliyah] got married was because they felt like if he was married to her and if he said he thought she was 18, that he wouldn’t be charged if someone found out she was pregnant until they were able to get the abortion and get [the marriage] annulled,” she said.

Allen previously revealed Kelly’s bedroom kinks during an interview with the Breakfast Club, saying “I will say that there has been times he wanted penetration himself. It was from a female, but still, but I mean…”

She also confirmed that Kelly told her his older sister molested him when they were children.