So, Mel B’s divorce just took an interesting turn.

An image posted on her ex Stephen Belafonte’s Instagram page almost a year ago is making headlines after the film producer’s brother claimed the duo had a “loose, open kind of relationship.”

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In the photo, which was initially posted by Kim Kardashian, a man’s head is seen on the lap of one woman while he grabs the thigh of another. “Is that my mouth??? Is that @officialmelb ring??” Stephen captioned the pic, suggesting the couple engaged in a threesome.

Though it’s not confirmed that the Spice Girl and her hubby are two of the people pictured, they were hanging out with Kim and Kanye West at a wedding in Miami when the reality star shared the racy snap.

Stephen’s brother Jeremiah suggested in an interview on the Kyle and Jackie O Show that the pair’s open marriage led to their eventual demise.

“[Stephen] was looking at it like a kid in a candy store,” Jeremiah explained. “In my opinion — and I am only giving my opinion here — if you’re not a very mature person and you’re not very solid, if you’re going to look at that as a license to then do whatever the hell you want, then someone is going to end up feeling unappreciated.”

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He added of his sibling, “He’s not a bad guy by any means, but he can be a little rough around the edges and he wasn’t probably picking up on the signs that Melanie wasn’t quite happy.”

Jeremiah also told the Daily Star that the duo’s sexual escapades often included strippers. “They liked to bring a stripper over and have a little fun and stuff like that,” he shared.

Married since June 2007, it’s believed that Mel B decided to file for divorce after a “moment of clarity” following her father’s recent death. She is allegedly requesting joint custody of the couple’s five-year-old daughter, Madison.