It was my first formal event ever and (e:Dianne)'s first tux-wearing opportunity. She looked great, didn't she? The boys looked incredibly handsome. I swooned for all three of them.
Since this was new to all of us, I read up on the details of proper "black tie" attire and the rules are pretty simple: Men must all strictly conform and not stand out; women have a lot of flexibility in what they can wear but sparkly seems to be key. As (e:Terry) observed, "That's very sexist."
The gender role expectations are very strong and so we knew that it would be disruptive that she was wearing a tux... but it kinda wasn't because she completely passed. We weren't really intending that either - D's very happy to be a woman and to be understood as a woman. One young woman had to sit for a moment when she realized that D was a woman... an older man was insistent that she use the men's room and she finally had to explain her gender to him. While we were eating dinner, the man next to D referred to her as "he" a couple times, she got up to take a smoke break, and then someone asked how we knew the bride & groom and each other, so I explained "They are my & Terry's clients, this is Terry my business partner, DIANNE is my fiancee, and Paul is Terry's husband". He continued to refer to Dianne as "he". (Another case of "why did that man's parents name him 'Dianne'?" )
So my thinking for next time we have a black tie event... if women have flexibility in their formal wear, and D won't wear a dress/wants to wear a tux, and we don't want to her to pass as a man... then she can wear a tux and do all the flamboyant things that I wouldn't let (e:Paul) do. She'll have purple suspenders or a vest and lovely purple ascot
or whatever else her sweet heart desires to flag her as female while not violating her butchness. All in all a very thought-provoking and fun event.
:-)