I understand where Ur commin from.
I used to be one skinny fcuk till I was like 20: 5'6 120 lbs w/ 24 waist~

Although I was in pretty good "built" shape, I could hardly pull off any men's jeans due to my micro hip.
I went w/ Seven's as U can't really tell difference, but most women's Diesel tend to have small back pockets, which creates that feminine look which does NOT look good on guys.