1st dinner at the "Y"

When I was 14 I was already well schooled in pornography and had read many stories of sexual exploits between men and women. I had a rough idea of what to do, but had never done anything more than stroke my own cock. One day my parents had to run to a relatives house because of an emergency so they left me in charge of my 8 year old sister. We lived in a small town and parents were fairly liberal about leaving teenage kids alone without adult supervision. After they left I sat my sister in front of the TV and told her to stay there unless she absolutely needed something. I retired to my room to read some porn and stroke one off. All of a sudden, as I was happily stroking away, in walks my sister. She said she needed a glass and couldn't reach the cupboard. Then she inquired as to what I was doing.I told her that I was making myself happy and that all boys do it. I also told her that girls do it too. She asked me to show her how because she wanted to be happy too. I agreed under the condition that she would never tell anyone I showed her. She agreed eagerly. I told her to lie down on my bed face up. After she complied I laid down beside her. I told her to lie still and I'd show her how to make herself feel good "down there". I had seen and read enough pornography so I knew a little about the female anatomy. I slowly slid her shorts down her legs and over her feet. Next I grabbed the waist band of her little panties and did the same. She was lying there completely naked from the waist down. I took my hand and started rubbing her inner thighs near her adolescent pussy. She told me it felt really good. I slowly moved my hand to her hairless crotch and massaged her lips. I could tell she was enjoying it because her eyes were closed and she was lightly sighing. Next I moved my hand to her tiny clit. She gasped as I began to slowly rub her little love button. I was already excited from jacking off, but this drove me to the extreme. My cock was rock hard and sticking straight up. As I continued to rub her clit I noticed that she was getting wet "down there" and her breathing was getting quicker. I slowly slid one finger between her tight, moist lips and into her soft, warm hole. She let out another gasp as I manipulated my finger in and out of her tight wet hole . So that's what it feels like inside a pussy I thought to myself. By this time she was so into her pleasure that she was wiggling and thrusting her hips to match my finger strokes. By now my cock was so hard that it hurt. In the heat of passion, and without a second thought I leaned over and started to lick her little, hard clit. She gasped with shock and amazement, but said nothing as she was enjoying it too much. So this is what pussy tastes like I thought to myself. It tasted good, but like nothing I had ever tasted before. I eagerly licked away as I finger fucked her. She started grinding her pussy into my face, but I kept going. I could tell she was nearing orgasm so I quickened the pace. She grabbed the back of my head and shoved it hard into her pussy. A split second later her body tensed up, she began to shudder and she let out a scream of pleasure. She gasped and shook for a couple seconds and then collapsed on the bed. Precum was oozing out of my cock onto her leg and I needed release. I rolled over onto my back and started stroking my throbbing cock. Out of the corner of my eye I could see her watching in amazement as I shot one of my biggest loads of my teen life all over my chest. She thanked me as she rolled over and cuddled my cum covered body. We laid there naked for awhile, regaining our composure before heading off to the bathroom to clean our sweaty, cum covered bodies.