I can honestly say that hasn't happened much around me.
And, sadly, this double standards occurs often in all sorts of settings (the more likely scenario I've run into, especially at large events like concerts are women in the men's bathroom. This irks me, especially when there are huge lines as it is and most of the... I forget the name.. have women in them.)
I've only invited Kristen into the changing room once and it was while trying on different work shits. Most of the time, she can hold it up to just under my head and decide if she thinks it looks good.