Both ladies opted for a tighter-than-tight pink latex number by Atsuko Kudo for the Mert & Marcus House of Love party in celebration of Madonna at the members' club Annabel's.
While the ensembles were VERY similar, there were thankfully some subtle differences. Kim's outfit, which is actually a top and a skirt, featured a high neckline, while Rita's oozed more of an S&M vibe with a bondage-style collar.
Reets continued more of an edgy vibe with her wet-look cropped hair, while Kim finished her look with more of a Joan Collins old-school Hollywood feel with big hair and a pink fur coat. And let's not forget to mention the PVC Manolo Blahnik heels.
Madonna appeared to have got over her on-stage Brit Awards 'cloak fall' enough to attend the party thrown in her honour, and arrived wearing a pair of enormous shoes that could easily have caused another embarrassing tumble.
Other stars at the bash included Lindsay Lohan, Nick Grimshaw, Chloe Green, Natalia Vodianova, Skunk Anansis, Mark Ronson and Noel Gallagher.
But it was surely Kim and Rita - aka the latex twins - who turned all the heads.
LOVE KIM? Flick through a whole host of her red carpet moments in our gallery below: