Schützenvereine, literally 'Marksmen-Clubs', are a centuries-old German tradition with roots in medieval citizen-militias. Today, they gather every couple of months to hold parades in elaborate costumes, get drunk, do some charity stuff, get sozzled again, practice some shooting in case the Huns return, and then end the day drinking meter-long beers in the local pub until sprawled in front of the Kotzbecken. They choose their own 'King' and 'Queen' of the club to preside over official ceremonies.
And the part of Düsseldorf I live in, the virbantly-diverse-in-a-good-way and totally gay-friendly neighborhood of Bilk, has just chosen Germany's first gay Schützenkönig, the 'King' of the Marksmen Club. That's him on the right there, he's a local Social Democratic politician named Udo Figge. The national broadsheet FAZ (g) has picked up the story. Apparently there was some talk of arranging a proper 'Queen' for Udo, but then the other Schützen would say:
So that's him in the photo above with his husband of 13 years. Schützenvereine are fairly traditional organizations, so the King & King setup has met some resistance, but the head of the main organization says gays are welcome in 'Marskmen Clubs' and have the same rights as anyone else.
When it comes to Schützenvereine it's not about your orientation, it's all about your ability to wear ludicrous costumes, lead parades of amateur musicians, sing drinking songs, and get pants-wettingly drunk in various pubs in your part of down.