Devin Booker Has Boozy Lunch With Kendall Jenner After Romantic Lake Trip

Devin Booker's offseason of love is still going strong ... 'cause after a romantic lake trip with Kendall Jenner, he sipped booze with the model at a lunch in NY -- and, yeah, the NBA star sure looks smitten.

The attractive couple hit up a party for Jenner's 818 Tequila brand at Sunset Beach Hotel on Shelter Island on Wednesday ... with Booker playing the role of proud BF as he watched Jenner celebrate the success of her alcohol.

Booker was seen smiling, laughing and schmoozing with Jenner's friends ... and we're told Kendall couldn't have been happier to have her tequila with her man by her side.

Of course, Booker and KJ have been inseparable since his triumphant return from the Tokyo Olympics ... they were just spotted enjoying other's company on a lake earlier this week.

In fact, Jenner proudly displayed her BF's new gold medal while rockin' a tiny bikini on their boat.

The two have been dating for over a year now ... and sure have been hot and heavy through the last few months -- with Jenner even hitting the road to see most of his playoff games.

Begs the question ... even though Booker didn't get an NBA championship bling this year -- is a wedding ring in the cards??