David Beckham's alleged mistress is chiming back into the conversation! As Perezcious readers know, Brooklyn blasted his parents David and Victoria for supposedly trying to ruin his romance with Nicola Peltz and screwing up their wedding! He accused the Spice Girls member of hijacking his first dance with his bride - then dancing "inappropriately" on him! WTF! The couple's wedding DJ already defended them, insisting the moves were uncomfortable and that singer Marc Anthony was the one to encourage it all! Oof! Related: Brooklyn Beckham & Nicola Peltz's Wedding Planner 'Surprised' By Rift With Parents Previously, David's ex-assistant and alleged mistress Rebecca Loos supported the 26-year-old's comments. Now? She's doubling down in a new documentary! In a sneak peek of Channel 4's upcoming doc, The Beckham Feud: Truth and Lies, set to premiere on Sunday and obtained by DailyMail.com, Rebecca blasted Vicky for her behavior at the nuptials, arguing: "Whether it came from her or whether it was Marc Anthony is beside the point because it shows a lack of awareness for other people's feelings." She continued: "I think any other mother would've read the room and understood this is awkward and probably said, 'Thank you for the compliment, but the most beautiful woman in the room is Nicola, Nicola, please take this dance.' Or at least if the mother had had a few too many glasses of wine and was unable to read the room, maybe the husband or the father would then have maybe stepped in and maybe grabbed Nicola, twirled her around and then swap partners to let her have the dance." There were reportedly around 500 wedding guests. Any one of them could've stepped in to fix the messy situation! Rebecca - who has claimed for years she and David had a four-month-long affair after the athlete moved to Spain without his wife and kids to play for Real Madrid - called Brooklyn's statement a form of "validation" of her own allegations, she added: "Suddenly you're part of a big PR war. In a very small way, this is of course validation for what I said and came forward and said 22 years ago. ... Brooklyn is basically confirming inauthentic relationships, value of promotion, endorsements above all else, and that it's all focused on brand Beckham, and that's all that matters." David has consistently denied her allegations, but she's certainly not backing down. It's interesting to see who has come to Brooklyn's defense and who hasn't! Reactions? Let us know (below)! [Image via MEGA/WENN & Rebecca Loos/Brooklyn Beckham/Instagram] The post David Beckham's Alleged Mistress Doubles Down -- RIPS Victoria For 'Inappropriate' Wedding Dance With Brooklyn! appeared first on Perez Hilton.