I am uploading this on behalf of TheNinthWave, as he has temporarily lost his internet.
This is the babydoll sparkle swimwear from The Sims 3 (Not sure of the EP) for The Sims 2, and 3 of my own custom recolours. It's only available for young adult and adult women. Only found in swimwear. Fat and pregnant morphs included, like all of my recent clothing meshes. Enjoy!