So This was about 12 years ago, I was 15 at the time, I had just started masturbating this year and I really enjoyed things like phone sex and dirty talking and the like, since it was an easy way to jerk off without having to hide anything if I get interrupted.
I usually locked my door when I masturbated, but this time around it was late at night and I forgot to do it, so I got completely naked, lay down on my bed and put on my noise cancelling earphones, I began jerking off and getting into whatever track on my MP3 that I was listening to, and I didn’t notice my older sister by two years walk in, she didn’t say anything and continued watching me masturbate, and she had just bought a new phone with a camera in it, so she began filming me masturbate naked on the bed.
I didn’t realize she was there until just before I came and heard her just laughing out loud, I instantly got embarrassed and covered up, she told me to stand up, and I did.
She then told me to finish masturbating in front of her, and this was so humiliating but I did it and I came in front of my sister who kept filming me.
She then told me that she owned me and I was going to do whatever she wanted me to do and started making me do all her chores, but that wasn’t the worst of it.
One day when our parents were out, she called me downstairs and I followed her, I saw a few friends of hers and one little girl about 12 years old, they told me it was her birthday and then she told me to stand in front of everyone and strip naked, I tried to tell her no but she said if I didn’t do what she said she’d show the video to everyone I knew in school, I couldn’t call her bluff and I stripped naked.
They then told me to start jerking it, and I did so and came in front of a group of girls and even one preteen, they even made another video, then they kept me around for the rest of the night so that they could have fun playing with my penis and using me as their butler that was humiliating.
My sister left to college next semester, but before she did, she did this a couple of times, she even had me jerk off outside on the front porch in the middle of the night.