This story dates back to 1982 when I was 18 year old and my sister Radha was 16 year old and was in class 8 .It happens acidently one day .At that time during summer holidays when it was too hot outside and we all were in the house and my mother & father were sleeping .We two were also lying on a bed in another room and reading comics.Later I found that Radha was sleeping and her skirt was little up to her knees .All of sudden I dont know how I thought of just touching her bared legs .I slowly moved my leg to her ankle and keep it there for a while touching her there.When I got certian that she is fast asleep ,without seeing her i raised my leg slowly towards her knee .As I was lying just beside her on my back, it was not comfortable enough for me to go any further.I slowly turned and change my position just opposite.Now i can very well force my leg into her skirt .I took a bedsheet and spread it over both of us to avoid any one catching me redhanded .Once under cover I slowly moved my leg up toward her belly ,slowly,rubbing her thighs so as she may not got awake.l raised my leg untill I found the undercloth of her panty.It was having elastic on both the ends.I slowly pushed my leg inside her panty throughthe elastic and keep my leg touching her maiden cunt which i was dying to feel by my hand till now.Untill now radha was fast asleep and she showed no sign of getting up.Picking up courage i covered myself completely within the bedsheet and put my hand insted of my leg inside her panty.It was a shocking expeience .Touching her mound and newly formed pubic bush.I slowly arched my hand in side her panty and cupped her choot to have a hot feel of her lips.This was the first time i have touched any choot for that matter .I slowly put my one finger on the lips and start rubbing it slowly.I was enjoying it like anything.A choot so near to me all these days .I slowly inserted the fingre and gave it momentum .Radha ,I guess felt something in her dream and turned her back to me.I kept my hand still unless she again went into deep sleep.I started again pressing her choot with my finger and slowly i make the movment speed built up.Till now i guess she was awaken but pretended to be asleep.She closed her eyes so as i may keep on continuig my act.I found later that she too was thorougly enjoying the first ever sexual act of our life.