Russell Wilson -- The Whole Family Loves Ciara ... And the WNBA (PHOTO)

Russell Wilson showed another Seattle team some love while showing off his girlfriend, Ciara, and his family having a great time together at a WNBA game.

Ciara and Russell went to a Seattle Storm game with his mother Tammy and his sister Anna ... who recently committed to Stanford, where she's going to play basketball

Ciara was repping her quarterback boo's signature #3 hat ... first comes his hat, next comes a marriage? Then they can finally get down to business.