I was 16 and living in Hong Kong with my single father who had a contract from his firm to train staff at their Hong Kong office. My dad who had been single for 5 years met a beautiful chinese women who his company used as a translator and who he fell in love with and decided to marry. My stepmom had a daughter my age and we soon became good friends as we learnt more about each other and our cultures. We both studied at home and would help each other with our school work. We shared a room and we had our own bathroom. My step sister Kim was pretty with short black hair,very petit figure with the most beautiful clear big brown eyes and very sexy plump lips that were mad for kissing! I was taller with shoulder length brown hair,green eyes and nice if not what I thought very sexy lips. I would often look at Kim and wonder what she would look like nude and compare myself to her. I was thinking this thought as she waltzed around our flat one Saturday morning when our parents came into the lounge and told us they were going shopping and would be back later. Once our parents had left Kim decided to have a long relaxing bath and put in all the bath crystals,bubble bath and oils that she wanted to relax in.She then lighted the candels and shouted to remind me to answer the phone. Having seen all the preparation and Kim walking around in her towel I felt a little aroused and noticed my nipples were hard. I slowly touched my pussy with my finger and as I expected I was wet. I raised my finger to my lips and tasted my juices and decided I needed to take care of my pussy. I sat down outside the bathroom and listened to hear Kim swishing the bath water around. I slowly undressed taking off my dress and pinched my nipples as I removed my bra. My nipples are brown, very cute and when hard very suckable! I twisted and pulled my nipples a little more before moving to remove my panties. As my stomach sent wonderful messages to my pussy I slowly pulled my panties off and slid a finger inside my pussy and another pressed against my clit. My legs were weak and shaking and I stopped myself from falling by grabbing the bathroom door handle. Kim heard the noice and opened the door as I regained my balance by the wall. She had her towel wrapped around her again and I looked at her with dissapointment in my eyes. Standing in the hallway totally nude with lust in my eyes I heard Kim ask me to join her in the bath. As I walked inside she dropped her towel and I finally got to see my beautiful step sister in the flesh. She was completly shaved and she had beautiful pink nipples. Her boobs were much smaller than mine but her nipples were twice my size. She looked at me and without saying anything bent down and touched my by now dripping pussy. She rubbed my clit and then inserted her middle finger to the max before bending it and carring on fingering me. I was in heaven when I felt finger number 2 slide into my pussy and join the party. I pulled Kim up to my face and told her I was too weak to carry on standing. She ignored me and carried on fingering me as we stood looking at each other. I closed my eyes as Kim took my nipple in her mouth and sucked hard, harder than I expectd and a sudden rush hit me as I felt myself cumming and exploding all over Kim's fingers. She dropped to her knees and started licking my dripping juices as she continued the assult with her fingers in my pussy. Ooh God I screamed as I felt my next orgasm rock my body, my juices were now flowing freely out my now swollen and very wet pussy. Kim finlally but very slowly took her fingers out my wet snatch and looked at me as she licked them clean of my juices. I needed to please Kim and correct the balance of power so I cupped her small boob in my hand and started sucking on those impressive nipples. I felt her nipple growing in my mouth and stood back as I withdrew her boob from my mouth to marvel at her rock hard nipples. She asked me to continue and I took her other nipple in my mouth and gently bit down causing Kim to gasp and grab my head, as she did I lifted my leg and spread hers as my knee started rubbing her pussy. I could feel how wet she as I moved my knee between her legs and her breathing was now quicker and a lot heavier, I motioned for her to lay down on her towel and as she did this I spread her legs and tasted her pussy for the first time. My finger entered her pussy and she was so wet, I put a 2nd finger on her clit and started small pressing movements, she responded with a little groan and her hands moved to her right breast and started feeling her nipple between her fingers. I removed my finger off her clit and slid it in her pussy to join my other didget. She was much tighter than I and I smiled and felt my own pussy stirring, I went down and put my mouth on her clit flicking her little nub wanting it to harden. Kim moved her hips in time with my fingers and grabbed my hand to control the depth my fingers were going. I now knew she was a virgin and I loved that, her eyes were closed as I felt her little pussy convulse around my finger and a stream of lady juice cover my face. Her body shook a little as I continued to lick her now hard swollen little clit and she told me she wanted to come again. I pulled her up to a sitting position opposite to mine and I moved closer to her so our pussy's were touching. We wrapped our arm around each other and started grinding our pussys together, mixing our juices that were leaking out of our now very wet slippery pussies. Grinding into each other we locked eyes and with a quiet understanding we started going even faster and harder as we both felt that we were going to cum soon. Her smooth shaved pussy was an incredible feeling and I felt the stirrings of a big climax building, I needed something hard to cum and moved and shifted my pussy on to her hip bone. I grinded down as Kim sucked my nipples and I suddenly started shaking and fucking her hip even harder. I started screaming I am cumming and Kim bit my swollen nipple sending electricity thru my whole body as my pussy exploded flooding Kim's hip with my juices, I continued to thrust my pussy on Kim's hip watching and shaking as I continued to flow juices onto her hip. I laid back on the floor as Kim came over and kissed me, a long deep kiss. I tasted both our juices on our lips. As Kim lifted me up on wobbly knees and led me to the bath she gently said I owed her one and she would collect after supper!