The record producer and radio personality was snapped taking a jet ski out for a spin as the two girls grabbed some sun on deck.
The trio were making use of the sleek boat that's owned by Miami night club entrepreneur Dave Grutman.
DJ Khaled used his smartphone to take some selfies as he sat perched on the jet ski.
He and the Kardashian and Jenner reality clan move in the same circles.
Also along on the day out was Kylie's eight-month-old daughter Stormi, whose father is rapper Travis Scott.
The infant appeared to be sleeping soundly in her car seat as her mother carried her aboard Grutman's yacht.