During major sporting events, we’re all used to the “friendly” bets between the mayors of the competing towns: Mayor X will wear a cheese hat if his team loses, and Mayor Y will ride to council meetings on horseback for a week.

But now the gays are at it — and not just the publishers of LGBT newspapers.

The Turtle Creek Chorale has a wager going with the San Francisco Gay Men’s Chorus over the eventual outcome of the Rangers-Giants series. The bet: The artistic director of the chorus in the losing team’s city will have to wear the other chorus’ garb — whatever that might be — for a rehearsal to be taped and provided to the winner chorus, and maybe even sing a pro-winner song. And as you can imagine, the gays are taking it seriously. “Bring it!” taunts the Frisco team on their Facebook page. “Fear the Beard!”