As a permanently horny fourteen year old boy I would always wake up in the morning with a hard-on. This usually meant the first 10 or 15 minutes of my day was spent with the sheets pulled back jerking off to a shuddering orgasm. Having satisfied myself, I would then get on with the rest of my day.
However that summer we were going on a two-week vacation with my dad's brother's family, and I had to share a twin-bedded room with my cousin Alice, who was a year younger than me. The first three mornings upon waking up with my usual stiffy, Alice was already awake reading a book or listening to her music with her earphones on. That meant I had a serious case of 'blue balls' and desperately needed a wank. On the fourth morning I woke up and Alice was still asleep, on her side facing away from me. I threw back the covers and began stroking my seriously hard cock, keeping one eye on Alice in the bed just a few feet to my side.
I imagined myself with one of the hot chicks I had seen the day before at the pool in her tight pink bikini. I threw my head back into the pillow and stroked faster as my orgasm approached. Suddenly my cock exploded and the first shot of jism landed on the wall above my head, the rest of it splattered along my chest and stomach. I lay there panting as I milked the rest of my jism from my cock.
'Wow, that was so cool' I heard Alice say as I looked across and saw her sitting up in bed looking at me. I quickly covered myself up, reddening in embarrassment. She had woken up shortly after I began masturbating and had been watching me wanking. I begged her to keep this to herself fearing a telling off from my or her father. 'Only if I can watch you do it again' she replied. The rest of that two weeks I spent each morning jerking off for Alice as she sat at the end of my bed and watched.