my step dads sister came into town and brought her daughter and sons with her. her daughter, emily, would stay on the computer in my room and just mess around while I play video games, practice guitar, that kind of stuff. one night, it had gotten pretty late, and she said she wanted to stay on, so I went ahead and fell asleep on the bed.
i later woke up and discovered that her hand was in her pants, while she was looking at porn on my computer. I made sure not to move much to let her know that I was awake. but the sight of her masturbating gave me an instant erection that was clearly noticable. when she checked to see if I was still sleeping, she did a double take and saw my erection. after a while, she became so interested, she decided to have a closer look. she came over to me, and as gently as she could (thinking I was still asleep) pulled my penis out of the hole in my boxers. constantly checking to see if I was awake or not she started to give me a hanjob. the feeling was amazing. I tried not to move at all,and maintain regular breathing patterns while she got to work. when I finally came, I shot all over her and my stomach. she got a tissue, cleaned her self and me up, put my penis back into my boxers and left the room. the next morning she had to leave, and she just pretended nothing happened. she packed her bags, gave me a hug and a smile, and left with the rest of her family. hope she comes back over to the house soon.