Well, it went fine. We made it thoroughly clear that wasn't going to mention it to anyone ever, which was my main concern. The only bad part was when she talked about taking me to a gay bar, ugh. I can't stand bar scenes, and the last thing I want is to be that guy who was taken to a gay bar by his fucking mom.
Besides that, it was okay.
Congrats! Wish I had the balls. Has your Mother ever been to a gay bar? Not really the sort of place you take your kids!