My sister was 15, petite barely 5' tall with large firm breasts. She was very popular with the boys and had a tendency to date a real scum bag older guys. I was a year and a half younger than her and was, like all 13-14 boys, horny as hell. Sis was going out with a musician from Tacoma who was 18. He got her into pot and booze which she really seemed to like. My parents weren't around a lot and sis could come in and out as she pleased. I started noticing that she would come home with her date with the musician pretty stoned. She would often just pass out on the bed. She told me that she lost her virginity to Jerry - the musician -- but said not to worry because they always used protection. Sis came home one night drunk and, like usual passed out on her bed. She had worn a short skirt, blouse and leggings for her date with Jerry and was laying there on her stomach with her white panties showing. The parents were out drinking at the Elks club so I slipped into her room and shook her a couple of times like I was trying to wake her. When she didn't respond, I turned her over and started to fondle her breasts through her blouse. Nothing. I then moved my hand down to the crouch of her panties and started to run her pussy through the cotton crotch. Nothing. Emboldened, I put my finger inside the leg whole and pulled her panties aside to see her pussy. The hallway light was on and I could see the pink lips of her pussy. They were pretty red so I assumed that she had been fucked by Jerry already that night. I eased one finger into her and could tell she was still fairly wet. as it slid in easily. I finger fucked her for a while with the one finger before I got brave and finger fucked her with two fingers. Man she was out. I thought if she ever woke up I'd be in trouble. When I was fucking her with my left hand, I began jerking off with my right hand. I so much wanted to fuck her but I didn't dare. Instead and kept jacking off and when I was ready to come, I move up so that my cock was just inches from her pussy. I came like never before and made sure to aim the spunk so it went into her crack. I knew that I should not do what happened next but I just couldn't help myself. There may hot little whore of sister was passed out cold with her plump little pussy covered with cream. I scooped up my jizz with two fingers and inserted into her passed out pussy. I inserted my cum covered fingers to the hilt and wiped them off in my sister's cleft. I repeated this 2 more times. Then, I got some tissue and wiped off her pussy to remove the evidence. About 6 weeks later I came home to find my sister crying and my parents yelling at her. They told me to leave. Later, she told me that Jerry had gotten her pregnant and that they were "going to take care of it." Sis later broke up with Jerry and no one was the wiser. This is a true story.