Marcus Jordan was back in Miami Beach on Sunday ... and while he hit the sand with a different woman than Saturday -- the results were largely the same.
Michael's son and his new gal pal were all over each other -- this despite Marcus having a similar afternoon with an entirely different woman some 24 hours prior.
34-year-old MJ and the Larsa Pippen lookalike -- who was wearing a tiny, baby blue bikini -- hugged on one another ... and passionately made out in the ocean as they enjoyed several hours in the South Florida sun.