An event that happened with me and my cousin.
Since I was younger I have always had this odd minor crush on my adoptive step-cousin (For this story I shall call her Alice). One day when I was 13 my mom visited my aunts house and I got to visit my three cousins, Alice being one of them. She was about 16 and she had blonde hair and the worlds cutest breasts. One of my boy cousins was up in his room playing games with me and the other was off with a friend. I got bored playing games so I decided to wander around the house. I walked right by her room and was about to walk downstairs when for some reason I turned around and walked up to her door. I listened and heard sighing and slight moaning. I may have been 13 but I wasn't stupid, I knew what she was doing.
Her door had a tiny hole in it and that is what I used to spy in. I found her lying on her back masturbating. She had her legs spread apart and had both hands down between her legs. Her panties were off but she had a bra on. Sadly her bed was turned ever so slightly to the left so I couldn't see her pussy. She let out a loud moan and immediately felt myself get rock hard. I began massaging my dick through my pants and very quickly came into my own pants just a little bit. She put herself into multiple positions and kept moaning about some guy from a band and him cumming into her or something. What I didn't realize was that the door was broken and didn't latch properly, so when I went to lean against it, it fell wide open and I fell on the floor.
She and I sat shocked for a second. Then she walked over and helped me up and gently shoved me back to the doorway, gave me a smile, then closed the door, all while being almost fully naked. I sat shocked for a second, but then immediately went back up to the hole and the last thing I saw of her that day was her grinning and putting tape over the hole. I hope you enjoyed my story, but believe me this isn't the only time something has happened between us.