True story. This has been on my mind for a long time. Hope you enjoy.
I've always had a thing for my sister, she's no super model but she has a fantasic body. I have been taking her underwear since I was about eight or nine. Anyway, after years of staring at her and peeking through her key hole when she rubbed moisturiser onto her soft pale skin, it got too much for me. Thing is, we were in the back of my parents car on the way back from visiting relations when I got pushed over the edge, can't remember how old we were exactly. I was about thirteen and she was sixteen. She's about 5'2', has brown hair and wears glasses which actually make her look quiet innocent. Average sized breasts.
It was a pretty dark and boring drive. I was dreaming of what I would like to do to her and god only knows what she was thinking about. All of a sudden she moved to the center of the back seat where there was just the two of us, she got up and leaned between the two front seats. Her ass was inches from my face. I was wearing a pair of old combats which had the pockets pretty much torn off from due to too much wear. The more she reached for the radio to get some tunes going, the more her white tracksuits hugged her superb ass. She was wearing black lace underwear which I had worn before. I could almost smell the scent from them. I could clearly see the outline as she turned on the light to see the radio.
She must have been there for ten minutes jiggling her ass in my face, I could see the outline of her pussy as she spread her legs to keep her balance. You can't imagine how good this looked to a 13-year-old perv. Surprise, surprise I was as hard as a rock. When she sat back down I was ready to explode. She turned the light off and I slipped my hand through the hole in my pocket and slowly rubbed my cock, I couldn't stroke it in case she saw me. To this day I have never been so turned on.
I was staring at her for about five minutes rubbing my cock which was soaked in precum. She has a habit of shutting her eyes and whispering the words to songs. This was my chance, seen as it was dark I took a chance and slipped the tip of my dick out of my combats, just as I was about to cum, as I knew I couldn't explain a big wet patch. I quickly came in my hand, doing my best not to groan and keep a straight face. Then I maybe went a little too far, I got a hanky from the pocket which was beside me and cleaned my large sticky mess into it and put it back in her pocket. Saw her using it a few times over the next day or two. Would love to tell her to see how she would respond but I can't take the chance. Wanked looking through her key hole hundreds of times since. If you saw her bod you would understand why.
That has been on my mind for a long time. I am 25 now, she's 28 and a lot better looking, still got a hot ass.