Gabrielle Union was dancing her ass off at the Pride Festival in Miami Beach this weekend ... and it was all to show support for her 11-year-old stepson, Zion.
Zion is Dwyane Wade's son from a previous relationship but he lives with Dwyane and Gabby full-time and Gabby treats him like blood.
While Wade wasn't at the event -- the Miami Heat had a game in Toronto -- the NBA star was certainly proud of his family, saying:
"Zion had his own cheering section today. Wish I was there to see you smile kid."
The Pride Festival in Miami Beach is one of the biggest LGBTQ events in the country -- with more than 145,000 people flocking to South Beach last year to celebrate together.
Gabby was having a blast -- dancing, taking pictures with fans and signing autographs.
Zion was sporting a rainbow ribbon and a big ol' smile!
Dwyane posted a photo of his older son, Zaire -- a HUGE prep basketball star -- with Zion at the parade along with the caption, "We support each other with pride."
He added, "It's a family thing."
Pretty awesome, if you ask us.
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