I love these shorts so much! I got them size small (24-25 inch waist, 116lbs, 5"4 for reference) in the colour black and I'm considering getting them in other colours too - love plaid, and they're just super cute and comfortable. I normally don't like "paperbag" style shorts, but I didn't notice the edges around the top of the corset bit to be sticking out as much as they typically do with these style of shorts. However, if that's something you do want I'm sure you could achieve that by sizing up and pulling the string in the corset tighter.
PS: Help a girl out and use my rewards code, NECC6G, for up to 20% off your order. Thank you :)