I’d be going: “Yea, OK, I get it, wedding cake with two dudes on the top. OK. We’ll do it. But, I got to warn you. Every once and a while we drop something in the batter and I just wouldn’t want you to be surprised. Nothing dangerous. But, its a messy kitchen back there what with all of our gay cooks and their condoms flying around everywhere. I’m sure it will be ok, but just to be safe, cut the side of the cake that is away from the crowd.”
To be fair, the author does say that she believes that bakers and others who don’t want to cater gay weddings, etc. should not be forced to.