You forgot to fully shut the door...

As you stand there, back against the wall, finger exploring your wet cunt you can't help but feel like you're not alone, like someone is watching you. Your eyes look about but your quick survey yields nothing and so you drop your gaze down to your hardworking finger and slide another inside causing a moan to escape your lips. You probe deep and slow, a nice pace to give you that slow but steady build up of pleasure. Then that feeling nags at you again and without interrupting your performance you scan the room again only this time you catch a glimpse of something at the door. It was brief but you're certain there was something there. You continue to drive your fingers into your twat but look in the mirror to watch this time. Within seconds you see movement at the door...the DOOR....you apparently didn't give it a push hard enough as it's cracked open just enough that someone could take a peek and get a free show of a slutty girl fingering herself for free.