Yes it’s true. The fish oil trick is one of the oldest in the books. I don’t know if it is actually women that tend to pull this. One thing to remember is that plenty of men set up and run panty sites or list auctions. They grab a few photos, put them up and write some text posing as a lady. There are actually quite a few of these out there. When they make a sale of course there is no woman to wear them so they spritz a little perfume on the panties and put a few drops of fish oil in the gusset.