The first time my sister saw me masturbating, I was 15 and it was a complete accident. I don't know why but I was into making videos of myself jerking off. I usually took my camera phone with me to the bathroom or just in my bedroom where I had privacy. One particular day I went into the bathroom to get ready for the day. As usual I was horny so I made a video of me jerking off. I made it nasty too. When I came I didn't stop jerking. I let my semen spread all over my dick as it squeezed through my fingers. It was just disgusting. I got in the shower and cleaned up for breakfast. I finished up and went downstairs to eat.
As I was sitting there my older sister, 17 at the time, came and told me I left my phone in the bathroom. I took it and thought nothing of it. Later that day as I was going through to delete stuff, I noticed that I sent a text to my sisters' phone. I didn't remember sending her anything. I barely send her anything at all. When I checked the details of the text I saw that it was my movie I made that morning. I let out a small scream. I didn't know what to do. When I got home from school it was so awkward being around her but she didn't seem to act any different. I could only hope that she didn't see it. I was looking for an opportunity to get her phone and erase it. I couldn't find a moment where she left it.
The next morning she beat me to the bathroom. Once she left I went in to start the day and found the greatest gift. She had left her phone on the counter. I grabbed it and looked in her inbox for the text. I couldn't find it. I began snooping a little and found that she saved the video in her saved area. That was not what I was expecting. I snooped a little more and found the jackpot. She also made a video of herself. From the way she used her finger I could tell that this wasn't her first time. It was so hot! The best thing about it was its title: 'For You Bro'. I sent it to my phone.