This happened when I was sixteen yesrs old. I had played around a little with mutual masturbation with other boys since I was ten and I began masturbating on my own when I was twelve. It wasn't until I was thirteen that I started to get precum while I masturbated, and orgasms with cum came shortly after that.
One night I was in my bedroom. I was in a very comfortable mood. I had my lights off and had just a few colored lights on in my room. I was listening to music wearing headphones and laying in a bean bag chair in just my underwear. The dimly lit room got me feeling a little horny. I slipped off my whitie tighties and I began to play with myself. I didn't know it then, but I know now that I was blessed with a fairly long penis. I am now eight inches long and I must have been at least seven inches then.
I remember enjoying the atmosphere and my erection. I was so comfortable that I must have fallen asleep. A while later my Mom entered my room to ask me something. I have no idea what she was talking about, but I remember talking with her for a little while before she left. Right after she closed the door I realized that, not only was I laying there naked, but I had my hand on my fully erect cock.
I was so embarrassed, she must have seen me naked and known what I was doing, but she never said a word about it and it certainly didn't stop me from continuing to do it more.
I have a few other stories I will share with you later.