Kylie Jenner's former BFF was on the set of the rapper's new music vid Wednesday in Miami, showing off her endless curves in some sexy lingerie and a super revealing dress. No wonder Rick recruited her.

RR is looking pretty fly himself ... throwing on a black and white animal print button down and dripping hard with some gold chains. Rozay is peak South Beach.

But, this is all about Jordyn and how well she's doing for herself without the Kardashians.