The Dirty Game! SeXStoRY

I still kinda get a boner when I write about this story... It was the month of December. I had been very excited cuz my cousin s****r was coming, along with uncle and aunt that day to spend a couple of days with us. I was young then. Maybe 12 or so...so naturally the prospect of arrival of guests at our home made me feel really excited... Finally they arrived at about seven in the morning. Uncle, aunt aunt and her. It had been so long since I had last seen them! My cousin seemed to have grown twice the size I had last seen her. We spent the whole day playing, watching movies and having loads of fun...time flew and soon it was night time. Although she was two years older than me, I had always been very close to her, so we were allowed to sl**p together in my room that night. Of course our parents never gave a second thought about it. I was too young to have any sexual fantasies about anyone..and my s*s was known to be a homely girl... We were curled up inside the same blanket... talking about school, friends and stuff like that. Suddenly she said, "Isn't it rather cold tonight? Lets come closer." We were really close to each other now. I could listen to her heart beating and I smelt the air she exhaled. It kinda felt good...her breathing was getting heavy... Now she put her hands inside my shirt started to feel my abdomen..."Hmmm...youf abdomen feels warm and cosy", she said softly...her breathing grew heavier with each passing moment and I had this strange and beautiful feeling somewhere below...the way I felt when I saw mushy scenes on the TV...I suddenly realized that my penis had started growing...it had started pulsing and with every pulse it's size increased...it felt so wonderful down there...! "Let's play a game", she said..."Hmm..let's call it, the dirty game..here are the rules, I touch your bare body and smell it and lick it...in return you touch, smell and lick mine"...she had already put her hands deep inside my pyjamas and was pressing my hips when she explained the rules...her voice was a soft whisper, barely audible... I agreed instantly.."It must be fun" "You've no idea" she whispered into my ears and brought one of her hands over my swelling penis...it was like i had got an electric shock...i felt a sudden rush of excitement flood into my body. I wanted her to hold it tighter! I put one of my legs over hers and put my hand under her pyjamas. She's the first girl over whom I've had an erection and she's the first girl I've touched... and her hips felt so soft to touch. But they were huge and I loved pressing them... "wow! that feels nice!" she mumbled softly into my ears, then she took one of my hands and put it slid it inside her semis...she had a very smooth abdomen too...it was heaving upward and downward, drawing in and out heavy gusts of breath...a notch up and I felt her abdomen mount up slowly...s*s had started shivering by now...and I was in my heaven....GOSH! Was that a chest? I was thrilled! I had never touched anything so soft and big before...and in the center of it was a bud like thing, it was her nipple, but they were much bigger than mine and protruding out like the bud of a little flower...I loved putting my fingers around it...I was losing my senses by then...! I slid my other hand out of her hips and put it in her front to check if her penis had grown like mine had...I was in for a shock...she not only seemed to not have a boner...she didn't even have a penis...! There was a small mound of folded skin instead...the skin was moist and warm..."Where's your penis didi?" I asked innocently... She stifled a laugh and whispered, "You stupid, girls don't have penis" I was dumbstruck...the idea of girls not having a penis was completely new to me! I don't have my own s****r and my mum and dad are very conservative on matters relating to sex. So I had this presumption that girls have penis like us! "So how do you pee?" I asked innocently again...s*s was choking with laughter by now....I kept grinning stupidly... "Oh, go to sl**p, you idiot" she managed to mutter in between fits of laughter. I obeyed her and shut my eyes... We played "The dirty game" again the following night...things were getting dirtier indeed! I put my finger inside her asshole and her mound. I bit her nipples and pressed them really hard as she had asked me to....and I put my finger into the moist hole and tickled it until she moaned with excitement...I loved the way she uttered her stifled moans...they sent electric sparks through my body every time... She also did her dirty bit in the game...she pressed my hips and rubbed my thick penis against her thigh....then she held it and rocked it up and down...GOSH!! it was awesome....and when finally she put her mouth on my cock and started licking my it round the foreskin, I couldn't stifle my moans!! She stopped instantly, hit me on my ass and went to sl**p without another word!! I kept touching my still erect penis until sl**p overcame me...