You watch it.

You cannot stand waiting any longer and are just too curious. So you take your phone and select the video. You turn your phone sideways so you can see the timeline of the video. Its mostly dark but there are a few light spots. This means the light in the bathroom was on. You go to the first light spot. At first you see nothing. Then after a few moments pass you see your friends little sister walk in. You were hoping she was taking a shower. She walks in fully clothed but as soon as she closes the door the clothes are off. You can see her pussy in all its glory and her ass too. You never thought you would see her like this. Do you continue watching?