I wouldn't put a high priority on this idea, but it might inspire some creative corpuscles. I was clicking on the Google ads at the top of the page* and ran across this:
http://www.laraines.com/masubymicofa.html
Credit: Image pilfered from Laraines.com.I was thinking some of my larger lady or elder sims would like that. It covers that midriff bulge and mommy tummy, y'see. The full-coverage bottom might be appreciated, too.
In actual fact, very few of the sims in my little fantasy universe have these concerns, but folks who are going for more realistic game play (or who pursue different fantasies) might like it!
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*I think this is behavior to be encouraged. It adds a bit to Insimenator's Google revenues and also increases the site's Google standing. Besides, the clothing sites are really great references for skinners even for those of us who really aren't in the market for real-world teen clothing. If you pilfer someone's design and provide a credit with a courtesy link to the real clothing site, then everybody's happy.