Evolution

Actually I've never known a girl, in the 80's or 90's, to go to a sleepover expecting to have pillow fights in their underwear.

1990, girl in the middle.. Whoa

let's go back to the 70's please.

I thought they would be naked in 2013...

Some decency, please! The photo of 2013 is so indecent, they're practically naked! xD lol jks