I started mastubrating at the age of 14. I have a sister who is two years older and we have our own rooms.
I remmber an incident which happend at the age of 18. Dad and Mom had gone on a trip. My sister had gone out. It was in the afternoon and I was getting a bit horny. I switched on the video and watched a few porns. I felt like jacking off.
I wanted to jack off in a different way. I went to my sister's room, opened her drawer where she keeps her panties. I noticed in her drawer there was an battery operated shaver. I switeced it on, it had a good viberating feeling on my hands.
I decided to try out something new. I droped my shorts and slid the shaver in my underwear and placed it under my cock. I switched it on and the vibraation was great. I was on it for five minutes when I heard footsteps. I had forgotten to lock the main door and I knew my sister was coming. I quickly switched off the shaver and pulled up my shorts in a hurry with the shaver still in my underwear.
My sister entered the room. On seeing me she said hey, 'What are you doing in my room?'
I said 'I was just looking for something I lost.' My cock was rock hard. Just then the funniest thing happened, the switch on the shaver got pressed and the shaver started.
My sister said, 'Hey what's that noise?' I did not know what to do and said that it was from outside. She said that it was from the room and then she said that it was coming from my pants.
I said 'No,' and she said, 'Hey what the hell's going on?' She orderd me to stand still and drop my shorts.
I obeyed and dropped it. She saw my 8-inch cock bulging in my underwear with the shaver under it. She told me to take it out. I pleaded not to. She said to do it or else she would tell Mom and Dad about it. I pulled out my dick, she said brother you have really grown and said to stroke it in front of her. I did it and shot a load in front of her.
It was a great day.