What would you think about this conversation? What would have been your response?

Yesterday, I was @ a gathering after an initiation ceremony into an organization I belong to on campus. This girl says "Oh, no, I forgot to my birth control" and pulls it out in front of the WHOLE group at dinner..This led way to two girls sitting across from me talking very Intimately about their own sex lives. I didn't say anything but just thought to myself who would but themselves out there like that?