Sex story

Me (F14) and my step brother (M17) were home alone. It was friday night and our parents were at their friends house and they wouldn't be back till the next day like they always were. We were watching a movie when a sex scene came on. He told me to go up stairs and he would call me back down when it ended. The sex scene had gotten me horny and I started watching porn and masturbaiting. My step brother called me down 5 minutes later and I was dripping wet. He must have saw my pants were soaked. “What were you doing in your room” he asked. I told him I was doing nothing but he knew that was bull shit. He went over and looked at the camera footage we had set up incase anything happens. I forgot to delete the footage and he saw everything. “I won’t tell anyone under 1 condition” he said. I knew what it was. I looked down at his paints he was as hard as a rock. I wanted it. Ever since my best friend had gotten fucked by her boyfriend she told me it was the best feeling ever. I instantly got on my knees pulled his pants down and started giving him a blowjob to his 10 inch cock.