Giggles in your Inbox Subscribe to our daily newsletter and get the latest updates on fashion, beauty, style, and more. Especially when they're on the toilet with their panties down, maybe not realizing they're a bit dirty? This also works for oil stains. Anyone else Dirty stained soiled panties any to contribute? Depending Dirty stained soiled panties your vaginal pH and the time of the month, the acid levels in your vaginal discharge vary, as does its ability to wreck havoc on that adorable pink thong you just bought. Find all posts by sikich.