Magic's Son EJ Johnson -- I'm Also Boycotting the Clippers

Clippers games just got a lot less fabulous ... 'cause Magic Johnson's son EJ Johnson is joining his dad's boycott until team owner Donald Sterling steps down.

The "Rich Kids of Beverly Hills" star was rushing into 1 Oak Sunday night in Hollywood when he told our photog he's on team dad on the subject of the Donald Sterling audio.

As we previously reported ... NBA Commissioner Adam Silver says Sterling has agreed he won't go to the Clipper's playoff game today.