Delta Gamma Initiation?

I know initiation into sororities is supposed to be top secret and you can't find out until the day you're there. But I've been talking to DG girls this semester, and past week, and I really like them. The thing is my friend Billy just sent me a message warning me that DG is notorious for their initiation which consists of standing naked infront of your sister and having them critique all your imperfections. And I seriously couldn't do that. It'd make me cry, and I would be absolutely mortified. And I'm sure thats the idea (sidenote: I mean what if you were on your period???!!!) I don't know. If anyone can confirm or deny this myth that'd be great. Because that would keep me from going out. So I really would like an honest answer if possible.