Congratulations, Supervisor Bevan Dufty and Rebecca Goldfader! They're expecting a baby in October.

"Wait a minute!" you say. "Isn't Dufty gay?" And those of you who go to the Menlo Clinic or take her pilates classes might also be thinking, "And isn't Rebecca a lesbian?" Well, sure -- Dufty and Goldfader are what the Bay Area Reporter calls an "opposite-sex gay couple," who've committed to a relationship where they both date other people (though neither of them is seeing anyone right now) but will rely on each other for support and to raise their child.

The whole thing sounds vaguely sitcommy -- Goldfader and Dufty met at the Gold's Gym, where both of them were taking step aerobics classes. (Grapevine!) They've been trying since 2004, when they hired a gay male midwife to do the inseminations, and both of them giggle about the tremendous effort Dufty was putting in to get his sperm samples. "Sometimes he would come out of the bathroom sweating!"

They're thinking about getting a duplex and living on separate floors -- but Dufty has to make sure any house they live in is in District 8 (the famously expensive Castro and Noe Valley district) so he can run for reelection in November. We can't wait for the wacky episode where the babysitter Goldfader hires turns out to be an ex- of Dufty's, culminating in some kind of pratfall at the Board of Supervisors meeting that night.

The proud papa to your right.