I am fourteen. I've masturbated since I was 11. This story happened to me when I spent the week at my cousin's house (well actually with her aunt and uncle, she's 17 and still lives with them). My parents and aunt and uncle all went out for a night on the town. I was going to have a shower and go to sleep.
When I got in the bathroom, I looked at myself in the mirror looked down at my penis and thought that it would be a good time to have some fun. So I jumped in the shower, turned the water on and just beat my rod so hard. The shower curtain opened and there she was! Oh no! I forgot to lock the bathroom door and my cousin was still in the house! She was standing staring at my hard penis with my hand wrapped around it! She didn't say anything.
So I starting talking and saying 'Oh my god I'm so sorry!' She still didn't say anything. She started stripping and just jumped in. I kept saying sorry, she shut me up by kissing me. She grabbed my dick and stroked it better than I ever could! I shot the biggest load all over the place. She still didn't show any emotion. She turned off the water and licked whatever cum was on my body and swallowed it. She finally talked 'Now that you're clean, hand me my vibrator and leave. If you don't tell anyone we will do this as much as you want...' Everyday I jerk to her beautiful body and the feeling of the fanstastic shot I let go! I haven't seen her since but next time I'm sure we will do something like it again!