Fellow member of the narrow-hipped club chiming in...have "boyish hips" and thus, zero thigh gap yet, curiously, I also manage to avoid the pressure rub.  I didn't even know it was a thing until I read about it here!  The fact that former-females will put up with this ugly, disfiguring, painful crap right by their "intimate areas", instead of keeping their mouths closed and putting down the fork, is mind boggling.