This story takes place a few years ago when I was 14.
I was out of town for summer vacation. I had driven 500 miles to stay at my best friends house for the week. We hadn't seen each other in years. So we hung out and played every day. One day though something happened that still turns me on to this day when I think about it...
We decided to go for a swim so he went into the downstairs bathroom and I went upstairs. I walked up and past his sisters room toward the bathroom, but when I passed his sisters room I heard a strange noise. It was moaning and the faint squeak of bed springs, but I didn't know that until I decided to investigate. Her door was slightly open so I pushed it as gently as I could and what I saw has been frozen in my mind since. I saw his 13 year old sister laying on her bed wearing only a bra and panties with her hand rubbing her vagina through them. I was amazed, being only 14 I had never seen a girl do anything sexual before and I wasn't about to stop watching.
Well, I instantly got horny and my cock rose within seconds of seeing her pretty little body shaking with pleasure. I ripped my shorts off and started jacking off. I didn't take my eyes off of her for a second. I watched and jerked for 30 minutes until I finally saw her hips shoot up in the air four or five times and she SCREAMED, she had to stuff a pillow case in her mouth to keep her parents from hearing. I saw that her panties were darker in the bottom and I wanted to know why.
I was going crazy, here I was, a guy who had never witnessed anything sexual and I just watched a girl masturbate. She stood up and took her bra off and her breasts were amazing, her nipples were incredibly hard and pink, I started jerking faster. She pulled her panties off and they stuck to her soaked pussy. She threw them on the bed and walked to her dresser and put on a bathing suit.
She walked out the door and I quickly jumped into the bathroom. When she was downstairs I walked into her room. I could instantly smell her pussy when I walked in it was the most amazing smell ever, I started jerking off again. Then I saw her panties, I picked them up and I saw that the entire bottom was soaked, I held them up to my face and smelled them, and ohhh myyyy goddddd I almost came right then. I then licked the cum out of them and fell on her bed, it was so amazing. I jacked off for another 10 minutes smelling her panties the entire time. Then finally I was about to cum so I jumped out of her bed and shot it all over the floor. It was the greatest orgasm of my life. I kept the panties for a while and finally put them back because she may have noticed that they were gone.
Well typing this has made me incredibly horny I'm gonna go take care of business. Hope you enjoyed my story.