Here comes… more disgrace for the Honey Boo Boo stars!

Months after the show’s cancellation (which resulted from the matriarch’s alleged relationship with a registered sex offender), Lee “Uncle Poodle” Thompson is bringing more skeletons out of the closet — as he claims 35-year-old Mama June and Sugar Bear (real name Mike Thompson, 43) had a threesome with his older brother Billy back in 2007!

RELATED: Mama June and Sugar Bear Turn Down $1 Million Sex Tape Offer!

“June said all of the kids were out of the house and Billy came over to visit them,” the 31-year-old alleges. “Billy happened to see her in her undergarments. He then told June, ‘If you are dressed like that when I get back, I’m going to have sex with you.’”

Apparently, Billy blatantly hitting on his significant other didn’t bother Sug!

honey boo boo threesome

Sugar Bear’s brother, Billy, and Chubbs at Mama June and Sugar Bear’s redneck-themed wedding. Photo courtesy of Splash.

“Sugar Bear was apparently sitting in a nearby chair laughing,” Poodle says. “June said that about an hour later, Billy arrived and she was naked in bed and they ended up having a threesome.”

When asked to verify the event, Billy originally told ‘Radar’ he couldn’t remember if he ever had sex with his sister-in-law — before denying Poodles’ allegations, claiming the only ménage à trois June and Sugar Bear ever had was with another woman.

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