Yes you would want a size 18 corset as you are very petite and presumably don't have too much give in your waist area (or squish as I call it!) to cinch in....You'd be amazed at how curvy you can look though even when you are very slim, a couple of inches cinch can make all the difference!
You also need to make sure it is the right length for you which is something many people don't think about and then find their corset comes too far down on the hip.
Also, for what its worth, we have a worldwide and very eclectic customer base and I am pleased to tell you that we have lots of corset orders from ladies of all backgrounds, nationalities and ethnicities
