As a female who also wears tight jeans/pants. My 6+ does not fit in my front pockets. I can maybe fit about 1/4 of the phone in my front pocket. In my back pockets I can get about half of it in there. Which is doable but I don't like half of my phone hanging out.
I just put my 6+ in a wallet case or clutch case and just carry it like that. Not a big deal.
Have you considered writing to the manufacturers of your clothes to ask them why they can't accommodate the larger forms of cutting edge mobile technology? Or even better persuade the editors of Vogue to push baggy fashion again, I hear MC Hammer is looking at a comeback and might appear on celebrity Big Brother at some point. Food for thought as these trendy types aren't up with their tech quite obviously.