First experience with mutual orgasm

I met my teachers daughters when she brought them to a school function. My teacher was divorced and lived in a city a few miles from my high school. Her older daughter invited me to a Friday night party near their home. When I met the younger sister, Carrie, we struck up a real friendship. Carrie began inviting me to their house in the evenings. It began once per week and then nearly every night. I had been on a few dates with other girls with us making out heavily in my car. Lots of kissing and petting but nothing else. At first Carrie and I talked alot about all kinds of things and then began kissing. Remember she was 16 and I was soft spoke and a little introverted. We clicked. We would kiss for a few hours and then I would go home. After a few weeks we began touching each other through our clothes. Carrie was 5'7" and slender. She had started developing and had small breasts. One evening as we sat on a couch in their den my hands moved up and down her sides grazing her breasts. Carrie got up and locked two pocket doors which entered the den from the kitchen and bedroom hallway. She sat back down. I moved my hands from her sides to the front of her blouse. This was the first time I felt a nipple through a bra. My dick was instantly throbbing. Carrie put her hand in my lap and felt my dick. She began rubbing me as I unbuttoned her blouse. Our hearts were pounding. She said she had never seen or touched a boy. I told her I had never touched a girls boob. She unhooked her bra and pulled it off. I looked at her puffy pink nipples on her little tits. I instinctively started sucking on one. She shook and held me tight. She began to fumble with my belt and undid my pants. Through the opening in my shorts my dick popped out. She touched it and put her hand around the shaft. She smiled. I put my hand over her pussy and moved it up and down through her pants. I was sucking her tit again while I rubbed from the outside. She started to quiver and began to stoke me. We both began breathing faster and soon exploded. She with her pants on and me up in the air and on the carpet. We looked at each other and smiled broadly. I cleaned up, we hugged and kissed and I went home. The next night we did the same thing except she pulled down her pants and panties. It was the first hairy pussy I had ever seen. I rubbed the top of her slit. I didn't know where her clits was or what it was. As I softly touched the clit area it became firm. I rubbed the hard part. She had little pussy lips. I put my thumb and index finger on either side of her little clit. After a while she quivered and shook gain like the time before. When she calmed down she took my cock in her hands and pumped me up and down until I exploded everywhere again. We were truly in ecstacy  For the next year and a half we did this mostly in her den or in my car and at least five or six days a week. We were rarely apart. We progressed to oral sex and mutual masturbation. I never penetrated her for fear of pregnancy. We became great at every type of touching to orgasm and every type of variation. We never tired of pleasing each other. We drifted apart when I went to another state to college and she attended college in Los Angeles.We had a love affair only two innocent teenagers could have. I saw her a few years later. She was going to be married.