You've been assisting your girlfriends cute best friend in planning her party and today is the big day. She shows up in a short skirt and keeps asking you to make sure you can't see anything, she usually doesn't dress this way and feels like her panties might be showing. You keep assuring her that you can't see anything while she tries different angles. You can definitely see her g-string tucked inside her hairy pussy lips. She's incredibly naive so you enjoy the show while you can, even going as far as jerking off without her noticing.