Farrah Abraham and Amber Portwood got into a physical fight on the set of the Teen Mom OG reunion show, insiders have claimed.
The fight was sparked as the pair sat down with cast mates of the MTV show to be interviewed by Dr Drew Pinsky.
The host asked Farrah's boyfriend Simon Saran about a comment he made in which he called Amber's other half Matt Baier "a pedophile", according to the Real Mr Housewife website.
As Simon was about to apologize, Farrah interrupted and quipped: "Well, [Matt] does kind of look like a pedophile."
Amber then stormed on stage and launched herself at Farrah.
"At that point things got out of hand," a source told the website.
"Amber stormed onstage and started yelling at Farrah. Michael, Farrah’s Dad, got out of his seat and got in between Farrah and Amber and was yelling at Amber and calling her a b*tch.
“Suddenly, things took a physical turn," the insider added. "All that could be seen was that Michael seemed to put his hand on Matt’s throat and Michael went flying into the audience... Amber tried and just missed hitting Farrah."
Security then had to take to the stage to separate the pair.
Simon took to social media after filming and tweeted his version of events: "Recap of reunion: @amberportwood trotting around like a hippo. Matt and another senior citizen in a small scuffle. #teenmomog."
He later tweeted: "Why would I jump in? Farrah can handle herself."
Fellow star Catelynn Lowell, who also took part in the show, then waded in replying to Simon saying: "Obviously not cuz she cowered like a little b*tch."
She then tweeted that Farrah was "scared as f*ck the look in her eyes," adding, "She was terrified!"