It was a Friday night, and my only-just teenage step-sister Elen had been given the great joy of babysitting my nearly-teenage self.
You see, my step-dad had recieved tickets to a concert from my mother for that evening, and left her "in charge" of me.
Later on that night, she, being British and far more liberal than my American up-bringing, had started to ask me about girls, and about sex. None of which I knew about.
She eventually asked me about wanking, and if I had ever tried it. To that I replied, "I don't know, what's wanking?" and she took great joy in taunting me and running around the room calling me a "wanker wanter", with me following her insisting I wasn't.
To try and win this fight, she proceeded to the kitchen and produced some ice cubes from her hand and threw one or two at me, and then shoved one down my back, and another down my trousers, into my boxers.
She then asked me if I liked that, and I said "No, you're being horrible!"
Then she asked if she should help me find the ice cube down my trousers, and I replied that I wouldn't be needing any help.
While I was fummbling around trying to get the ice cube with both hands down my trousers, she pulled my trousers, and boxers down reveling my penis. At the time it was soft, but the confusion, and the mixed excitement and fear drove it to a respectable pre-pubescent hard-on.
Then she asked if she could touch it, if that would be ok by me. Before I could answer, she had her hand rapped around my penis, and was begining to kneel down.
As her knees hit the floor, she lunged her mouth forward, and I quite happily let her, as this was quite a nice feeling, and my brain was having problems working out the situation. Her lips surrounded my second head, and her warm soft moist tounge began to eplore the foreign object in her mouth.
Slowly she began to take more of my boyhood into her warm mouth, and I found this extremely pleasurable, and couldn't stand still.
She suggested that I should remove my trousers completely and lye on the floor, so we moved into the living room portion of the open plan room, and I lied down on the carpet, as she stood above my rock hard cock, and slowly reaquainted it with her mouth.
I lied there in silence as her moist orifice slowly bobbed up and down, as she licked my head. Every now and again, she would take my rod from her mouth and lick up the sides of my shaft, then reintroducing my head to the pleasure that was her tounge.
Before long I began shaking, and without realising it, I had my first orgasm. Of course I didn't ejaculate as I was too young, but my legs clenched, shook and the warm feeling washed through my body, all the while she kept sucking, licking and bobing. Eventually my cock went soft again, and she asked me if I enjoyed myself. With a smile on my face, I said "Yes!".
Then she made me put my trousers back on, and we watched tele until we fell asleep on the couch, as if nothing had happened.
In the morning, whilst my parents were now around, Elen asked if she would be "babysitting" anymore on this vist. My Mom asked if she wouldn't mind, and she replied "Well, last night wasn't any problem, I don't mind doing it again for you." My mother was severly pleased, as this meant she could catch up with some work, and would also be able to save some money over these two weeks of the summer holiday.
So me and Elen were left on our own quite a few times through out that summer visit of hers, and if you want more details, you'll just have to wait.