Wandering in late as usual. Some interesting answers and thoughts in all the comments. You are making me wonder about my choice of clothes! lol I am boringly het and have been married (to the same man) for probably longer than a lot of your commenters have been alive (depressing and scary fact that one). As I am tall, old and fat I tend to wear mens shirts because they fit more comfortably than womens and hide a lot of things (me) I'd rather not see! I have never worn skirts much and gave up following fashion while I was still a teenager. I have shorter hair than my husband and sons because it looks a mess longer. I don't wear mens underwear though! So I am grunging around like your butch lesbians. I do it for comfort and because no matter what I wear I don't feel very attractive. So could thier clothing choice be that simple? If nothing is going to look good, I might as well be comfortable? Just a thought.

And belly shirts (and cycle shorts) should only be worn by serious weight lifters. If it wobbles keep it under wraps!