I had just started my freshman year in high school. I was at a friend's house hanging out. Mike was a year younger than me. His sister , Jan, was a year older. Sometimes when we would go down to the river to swim she would come along. But mostly paid use no mind. Anyway , That night when mike and I came in his parents were on the couch. Dad at the end , mom laying with her head on his lap, watching TV. Mike lay on the floor in front of the couch and I jumped into the lazyboy off to the side. All the lights were out except the TV. After a little while Jan came into the room wearing a thick robe down to her knees. Looked like she just got out of the shower. Her mom ask if she would like her to make room on the couch and she said no. She'll just sit over here with phil. The lazyboy's plenty big. I was shocked but welcomed the idea. As she walked over I was trying to make room and she said just sit still. She sat sideways on my lap with her back against the arm and her legs over the other towards the couch. I could not believe it. I had both my arms by my sides with my hands on the seat. Did not know what to do with them. After a little we both relaxed and she leaned against my chest and I put my left arm around her back. She smelled really fresh and sweet. When she had curled up against me the back of her robe slid up under her and the back of her thigh was on my left hand. Everyone sat watching the movie. After working my courage up I started rubbing her back. She just watched the TV. Little more courage on my part and I started rubbing the back of my hand on the back of her thigh. Since I didn't get smacked I was getting more brave. Turned my hand around rubbing with my fingers and palm on her inner thigh between her legs. I could not believe she didn't stop me. I swear I could hear my heartbeat.I slowly worked my hand up her thigh. When I was within inches of her panties she parted her thighs a little. I thought my heart would stop. When I reached her panty covered mound I could feel the heat . Everyone was just watching the movie like nothing was going on. I had fireworks shooting thru my veins and had not a clue what was on TV. I worked my fingers under the elastic and felt the soft hair. It was soft as kitten fur.She was pretty wet. I tried to whisper to her how fantastic she was but she bumped the side of her head against mine with a SHHHHH! Never taking her eyes off the TV. I started working my fingers up and down in her slit. She slid her arms around my neck. Her father and mother was just a few feet away. I could smell her scent. I hoped they could not. I have never before or since been so excited and terrorfied at the same time.The excitement kept building. She stiffened and her eyes got much too wide. My hand was soaked. I could swear I could hear both of our heart beats. My **** was so hard I bet I didn't have enough skin left to close my eyes. Her hand grabbed my **** and it exploded. I swear I saw stars. Don't know how we stayed quiet. All I could smell was sex. We both sat there froze. Don't know how long. Then she just got up and left the room. I raised my soaked hand to my mouth. I licked my fingers. I aged years that night. I thanked everyone for having me over and hurried out the door. I floated home. Not long after that we moved. Never got a chance to be alone with her again and she acted like nothing happened when I would see her. Have not seen her for 30 years but if I close my eyes hard enough I can still smell her.