Some of my best jeans back-in-the-day were hand-me-downs from guy friends. Unfortunately, this no longer works as I have hips. Woe is me.
Anyway, I grew up with a lot of time in the Goth scene, so swapping of clothing genders is no biggie. If the clothes look good, who cares. I would laugh a bit if a guy was wearing jeans with all sorts of pink heart designs on the back pockets or something.
But I keep telling ya'll Justin Bieber is a 15-year-old girl. This is just another addition to the overwhelming mountain of proof!