It was bound to happen: First, there was the Obama Girl, aka Amber Lee Ettinger, who turned heads in 2008 with her seductive YouTube videos in praise of then-Sen. Barack Obama. Brooklyn-based Justin Brown, who describes himself on his Facebook page as a “Producer, Actor, Director and Writer at Seymore Films and the Maine Studios,” plays “Obama Boy” in a new YouTube video that focuses on Obama’s support of gay marriage.