One of the NBA's hottest hunks is officially off the market -- with Golden State Warriors star Kelly Oubre, Jr. popping the question to his GF, Shylyn ... and she said YES!!!
The 24-year-old forward announced the big news via Instagram just minutes ago ... sharing emotional footage of the proposal at a private and romantic location.
Oubre and the model first went public earlier this year ... and have been inseparable ever since.
They wasted no time taking things to the next level ... with the Dope Soul brand man getting on one knee and putting a massive diamond on his lady's finger.