Spencer Pratt says Miley Cyrus and Kaitlynn Carter had something going on when she was married to Liam Hemsworth

You know you're in for a treat when an angry Spencer Pratt opens his mouth!

The outspoken reality TV personality has weighed in on Miley Cyrus and Kaitlynn Carter's relationship— and he has a lot to say about the unlikely duo.

Speaking to Cosmopolitan, Spencer implied Kaitlynn and Miley had an "emotional" relationship long before the "Mother's Daughter" singer and her husband of eight months, Liam Hemsworth, decided to call time on their decade long romance. He also inferred they were seeing each other while Kaitlynn was still married to Brody Jenner and they were filming The Hills: New Beginnings as a couple.

“It’s tough for me to listen to Kaitlynn complain about people talking about her allegedly open relationship with Brody when we know she had a thing going with Miley," the controversial star began.

"She already had something going on with her when these scenes were filming — maybe not physically, but definitely emotionally," he said, referring No one’s judging you for whatever it is you and Brody do when he’s not sleeping in his car. We just don’t want people to lie about their lives.”

WATCH: Miley Cyrus performs "Slide Away" at the 2019 MTV VMAs after cuddling with Kaitlynn backstage

He continued: “Maybe you shouldn’t have gone on television. It’s called a reality show, hon. And the reality is that Brody’s been talking about your sex life on his podcast for years.”

Spencer— who rose to fame when he starred in The Hills— went on to defend his pal, Brody, slamming the couple for publically displaying affection towards each other so soon after they split from their husbands.

"My favourite is when she’s like, ‘Brody and I were wild, young, crazy kids.’ Was that last week? Because you and Brody have only been together a minute. Are you older and more mature now that you’re chilling on Miley’s yacht? I would love to know Liam Hemsworth’s thoughts on Kaitlynn’s recent displays of ‘common decency.’ You know what I call ‘common decency’? Getting it on at your Italian villa and not in front of the paparazzi.”

Jeez, where are the crystals when you need them?!

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Following news of their divorce, Spencer and his wife Heidi Montag addressed their breakup on his podcast, joking that Brody was a "hostage" when he was with Kaitlynn.

“I’m not surprised,” Spencer said on an episode of the Make Speidi Famous Again podcast. “I think season 2 we’re going to get to see real Brody… I think he’s [going to have] way more fun. He’s way less intense. I feel like he has a lot going on, so I just hope we get to see relaxed Brody, having fun, barbecue, for real Brody.

"So that I look forward to. I think there’ll be a lot of success in Brody. I feel like I said it that he almost was like a hostage, it felt like he was trying to tell me, ‘Get me out, get me out.’ ”

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While a source close to the situation told Page Six that "nothing Spencer says is the truth and he's trying to use Brody and Kaitlynn's relationship for personal gain" multiple insiders have claimed Miley and Kaitlynn have not only been seeing each other for months, but Brody Jenner is "totally ok with it".

“It was no secret," the insider revealed, admitting Kaitlynn and Brody—the step-brother to Kendall and Kylie Jenner— had discussed her relationship with Miley in the past. "Brody is still friends with them. There’s no drama. [Kaitlynn] had some other priorities [in her marriage], and you now know what they are."

Brody and Kaitlynn announced they'd decided to separate weeks before Miley and Liam publically revealed they were splitting.

“They love and respect one another, and know that this is the best decision for their relationship moving forward," Brody and Kaitlynn's reps Scott Newman and Lindsay Maguire told People at the time. “They love and respect one another, and know that this is the best decision for their relationship moving forward.”

This article was originally published on WHO

Madison S

When she’s not stalking Kylie Jenner’s Instagram or finding out some juicy Bachie gossip, you’ll find Madi curled up in a blanket with an almond ice latté, binging on The Real Housewives of New York.