Louise Turpin, the California mother accused of abusing her 13 children and keeping them imprisoned in deplorable conditions, had her husband drive her to Alabama so she could have sex with a man she met online, according to her sister.

Teresa Robinette made the explosive claims during an appearance on Megyn Kelly Today. Robinette said that Louise called her sometime between 2008 and 2010 to tell her that she and David had met a man from Huntsville, Alabama, and they were traveling there so she could have sex with him–all with David’s blessing.

“At the time, she told me that the older children were helping them take care of the younger children so that she and David could sow those wild oats that she didn’t sow when she was younger,” she recalled, adding that she believed the idea was “insane” at the time.

The aunt went on to allege that the David and Louise went back to the same hotel a year later to have an encounter of their own.

“And what makes it even worse and weirder, is that exactly one year to the day, the anniversary of when she did that, she called me and she thought this was funny: David was taking her back to the exact same hotel room, the exact same hotel—everything—the exact same bed that she slept with this man in, so that David could sleep with her in the same bed.”

As CrimeOnline previously reported, Riverside County police arrested David, 57, and Louise, 49, last week after their 17-year-old daughter reportedly escaped the home and called for help. The teen allegedly told officers that her parents were holding her and her 12 siblings captive–and presented pictures that corroborated her story.

The couple has pleaded not guilty to all charges, which include 12 counts of torture, seven counts of abuse of a dependent adult, six counts of child abuse, and 12 counts of false imprisonment. David has also pleaded not guilty to committing a lewd act on a child under 14 by force or fear. They face 94 years to life in prison if convicted as charged.

They are scheduled to appear in court on February 23.

Subscribe to Crime Stories with Nancy Grace: Apple Podcasts | iHeart | Art 19 | Google Play | RSS | Stitcher

[Featured Image: David Allen Turpin and Louise Turpin/Riverside police]