Isn't this a cute swimsuit? OK, I know the model looks a bit waifish, but I think the suit is super cute. Its done as two pieces but looks like one, so you could wear the bottoms with another top if you want to show off your torso. And the best part is you can order a PDF of this pattern on line from Burda Style for only $3.50. Its called the Cindy swimsuit.
This would look great on curvy women as well. The ruching will help define the curves, and the fact that you can make it yourself allows for the correct measurements to your body type.
There are a couple of other pics on the Burda site from real people who have made this suit along with comments. I do sew, but I've never sewn knits or spandex, but I just may have to try this one.