Kim Kardashian has been hit by claims she is secretly in collaboration with designers at fast-fashion brands who regularly clone her one-off ensembles. In a post shared on Diet Prada, an Instagram account which calls out plagiarism in fashion, likenesses were drawn between the 1998 vintage Thierry Mugler gown Kim, 38, wore on Sunday and a dress set for release by budget brand Fashion Nova. In a snippet from a Fashion Nova shoot shared on social media, a near-identical replica of the risqué gown was shot four days before Kim sported the gown publicly - leading to allegations of secrecy behind-the-scenes. Uh oh! Kim Kardashian (pictured, left on Sunday) has been hit by claims she is secretly in collaboration with designers at fast-fashion brands who regularly clone her one-off ensembles (a Fashion Nova shoot, said to have been shot on Thursday) Kim and the Kardashian-Jenner clan's styles have long been ripped-off by online and high-street retailers once they have sported designer, couture or vintage pieces - with the copies known to be released within hours of the stars wearing the looks. There has always been wide-speculation about the quick turnaround, however Diet Prada editors allege to have caught out a collaboration between Kim and the designers to help get the dresses released at speed. On Sunday, Kim caused stirs in the Mugler gown from 1998, which featured barely-there strips to contain her modesty while attending the Hollywood Beauty Awards. Shortly after, model Yodit Yemane, 21, shared a video on Instagram from a contact sheet at the Fashion Nova shoot in which she posed in a lookalike dress, which was branded 'The Kim Dress' in the images which were seemingly taken on Thursday. Ahem! In a post shared on Diet Prada , an Instagram account which calls out plagiarism in fashion, likenesses were drawn between the 1998 vintage Thierry Mugler gown Kim, 38, wore on Sunday and a dress set for release by budget brand Fashion Nova Sizzling: In a snippet from a Fashion Nova shoot shared on social media, a near-identical replica of the risqué gown was shot four days before Kim sported the gown publicly - leading to allegations of secrecy behind-the-scenes The dress was later changed to be called 'The Winning Beauty Cut Out Gown', however Diet Prada claimed they had already spotted the error. A caption on the Diet Prada post read: ''UPDATE: See stories for a screenshot of the date of the Capture One session (it’s labeled 02-14-19). Fashion Nova Mugler knockoff shot 4 days before Kim wore it on 02/18/19. Kim, you’ll never fess up to your sneaky lil collaborations, but we got all the receipts...⠀⠀⠀ 'At some point recently, a fast fashion photo shoot happened featuring a vintage Mugler dress that Kim just happened to wear on Sunday night to the Hollywood Beauty Awards...and yes, it appears to be a real dress, not photoshop... Eye-popping: There has always been wide-speculation about the quick turnaround, however Diet Prada editors allege to have caught out a collaboration between Kim and the designers to help get the dresses released at speed 'Ahead of Fashion Nova releasing the dress at 9pm EST tonight, house model Yodit Yemane may or may not have accidentally leaked a story 2.5 hours earlier of photo options from her shoot featuring the Mugler replica... 'The file names were even labeled “Kim dress” while it’s now being called “Winning Beauty Cut Out Gown” lol... 'This begs the question: Did Fashion Nova whip up the dress overnight in their Los Angeles atelier after seeing Kim in it or is she peddling her vintage finds to mass retailers ahead of debuting them for a calculated, timely release?' MailOnline has contacted representatives for Kim and Fashion Nova for comment. Oh no! Earlier this month, Kim took a swipe at brands for ripping off her styles in a more-affordable fashion after sharing an image while posing in a dress designed by her husband Kanye West - and beseeched designers not to copy the look Earlier this month, Kim took a swipe at brands for ripping off her styles in a more-affordable fashion after sharing an image while posing in a dress designed by her husband Kanye West - and beseeched designers not to copy the look. She penned: 'Going through old fitting pics & found this gold look that Kanye made for me for my Miami trip last summer (I went w neon vibes instead) P.S. fast fashion brands, can you please wait until I wear this in real life before you knock it off?' Missguided then shared a post of a model in the gown, while adding a caption reading: 'The devil works hard but Missguided works harder' - however bosses at the brand later deleted the shot, not before it had been widely-captured. Oh my: In November, Diet Prada again called out the 'life cycle' of designs worn by the Kardashian clan after a 1996 Jean Paul Gaultier gown was worn by Kim before a replica appeared on Pretty Little Thing one month later In November, Diet Prada again called out the 'life cycle' of designs worn by the Kardashian clan after a 1996 Jean Paul Gaultier gown was worn by Kim before a replica appeared on Pretty Little Thing one month later. The insightful caption on a snapshot of the various copies and originals read: 'When a Kardashian wears one of your designs, the typical life cycle of the imminent knockoff is fast tracked... 'In the case of this Jean Paul Gaultier dress from his Spring 1996 “Cyberbaba” collection, it likely took a couple weeks (or even less) to produce before it started spilling into dreaded retailers like Pretty Little Thing and smaller clubwear boutiques the world over... 'At least this one has a somewhat happy ending with Jean-Paul reclaiming the design in his most recent haute couture collection. This time around, the iconic contours were spangled with crystals'. Stylish: Despite Kim claiming to distant herself from the brand, both her mum Kris and sister Kylie (pictured) have affiliated themselves with the Fashion Nova, as the former plugged the brand in October and the latter has a long-standing collaboration Wow! Kris Jenner has herself sported and plugged Fashion Nova's ensembles Last year, while speaking on Ashley Graham's podcast, Pretty Big Deal, Kim revealed her husband Kanye West had given her a cheque for $1million (£774,415) as a reward for turning down an offer from a fast fashion brand - believed to be Fashion Nova. She said: 'For Mother's Day, he's like the cutest. So, a brand offered me a million [dollars] to do a post and they... typically knock off Yeezy. So, I said, "You know what, it's great money. Let me ask Kanye how he feels about it"... 'He's like, 'No babe, I really don't want you to do that. Understandable but that's a lot of money. So, I open the envelope and it's a million dollar check. And there was a note, saying, "Thank you for always supporting me and not posting".' Despite Kim claiming to distant herself from the brand, both her mum Kris and sister Kylie have affiliated themselves with the Fashion Nova, as the former plugged the brand in October and the latter has a long-standing collaboration. All rights reserved for this news site dailymail and under his responsibility