I don't know if it's this fuckin weed in me, but pinksigma's comment, albeit very irrelevant to the topic, made me think. There are a few billion people in the world who really don't care what our letters mean, let alone where somebody wants to put them. Personally, I will follow my fraternity's protocol regarding para, but it's much more important to aid the downtrodden. Now I'm hijacking this thread. my bad.
wait, one more thing... to be honest, if I was hanging out with a girl who had her sorority's letters on her thong, I probably wouldn't say anything until the next morning. And I'd probably start cheesin pretty hard. My mind wouldn't be on greek life at the moment.