Trained by my sister

Back 5 years ago I was 27 I'm the oldest of 2 and I'm not any good with women, I still live at home with my parents and younger sister then 23. I graduated in the top 5 of my year and got a great paying job/career as a result. My sister partied too much and is doing well and needed help to stay at university. My parents were very upset at her failing her course and cut back their financial support of her. She needed to greatly improve, or she would be cut off completely and that where I come in my sister wanted my help. She offered to train me on how to improve my luck with women. That also includes fucking them she added, I wasn't sure how I could improve with women as I was nervous around women, except when working with them. Personal interactions with them I freeze up and my sister said she could help get over that. So, for several weeks I helped her study and get ready for tests and showed her ways to study better. She passed the tests, and our parents told her to improve more still. Our parent went away for the weekend, left Friday evening and would be Sunday evening. My sister told me she would help with my woman problem, firstly she showered with me having me wash her body. We then slept together totally naked, no sex between us. The next day we stayed inside all day totally naked still and I got a hard-on, and she pulled me off. Nothing else, slept together that night also after again showering together again. All day Sunday still naked and we showered together again, and she again pulled me off. That was the total of our sexual interaction, but I was a bit less stressed than the first night together. Every chance we got we would shower together and after her finals she got improved results, and our parents reinstated her allowance back to the previous level, but with the warning if her grades felt again so does her allowance again. During the break she and I kept up her studying and she kept up my training. When our parents went away again, she taught me to please her words for foreplay. With me following her instructions I got her off the second time and I rewarded by her with fucking her. She said as long as I pleased her, she would let fuck her. I only got 2 fucks before our parents got home again, but that was 2 more than I've had ever had. The next year she had finally got into a studying and partying balance that helped her keep up her grades and I only got to fuck 3 more times. But she I needed another lover than her to prove myself, so with her help I asked a friend of her out and had my first real date albeit with my sister and her date joining us. Anyway, I got another date with friend a solo date and then another, finally bedding her friend on our 7th date. I really liked her friend, and we started a relationship that turned into marriage and now almost 33 and 2 children later. My sister trained me very well and she also done well at university and is now also married and pregnant with her first child.