Two things ...
First, Steve Harvey has a SMOKIN' HOT 19-year-old step-daughter.
Second, she's officially dating soccer superstar Memphis Depay.
Lori Harvey and the Manchester United star took the official first step of going public with their relationship Wednesday ... each posting romantic coupley pics of themselves on Instagram!
FYI, 21-year-old Depay's got some serious cash -- the dude reportedly signed a $40 MILLION contract with Manchester United last year.
Depay was connected to Chris Brown's ex GF Karrueche Tran for a while -- but that's clearly over and this one is on the upswing!