A future NBA dunker is on the way ... 'cause Chicago Bulls star Zach LaVine and Hunter Mar just announced they're expecting their first child together!!
The lovely couple broke the news to Instagram on Friday ... sharing pics from a photoshoot that revealed Hunter's baby bump.
"Baby Lavine loading!" Hunter said in the caption, "God has blessed us with the most special gift and we couldn’t be happier."
"Can’t wait to meet you, our little love ud83eudd0dud83dudc76"
A couple of NBA ballers congratulated the 2-time All-Star and his lady .