Here's a new one -- Kevin Porter Jr. took advantage of some downtime during the Rockets vs. Warriors game on Monday ... by linking up with celeb jeweler Johnny Dang and giving him his digits!!
The hilarious moment went down at the Toyota Center during Houston's 108-122 loss to the Dubs ... when KBJ leaned back to chop it up with Dang, who was sitting right behind the bench.
In video shared to social media, you can see KPJ taking Dang's iPhone and putting his number into it -- making it pretty obvious he's hoping to get a piece done by the King of Bling.