Sex with a relative can mean many things. When I was very young, my parents arranged for us to spend two weeks at a cottage with my uncle and aunt and my two cousins. The boy was the same age as me, and his sister was 5 years younger, a baby as I recall when when we first went there. Since we lived in different cities, we did not see much of each other outside these two weeks. Nevertheless, my cousin and I became very close friends. One summer, we must have been about 11 or 12 years old, when my breasts first emerged, my cousin greeted me with the statement "my, haven't you grown up." We laughed, but later I asked him if he had any signs of puberty, and he mentioned that he had was growing pubic hair. One evening, when we were baby-sitting while our parents were out, he mentioned that his pubic hair was itchy and made him want to scratch. One thing led to another and I agreed to try to shave him with his fathers razor. After I did that, he asked about me, and it thought, why not, and he returned the favour. That night, we talked a lot about what it felt like to have someone else touch our privates. He told me about his wet dreams, and how a friend had taught him how to
masturbate
Well, that was all it took. Alone in my room that day I tried very hard to feel for that spot, and found it and got good feelings. That evening, I mentioned it to my cousin, who again shared what he knew, and actually tried to give me an orgasm with his fingers, saying he had seem men doing that in a video he found hidden in he parents closet.
from then on, and for quite a few more summer, at least until we were about 14 years old, we played with each other many times during our family vacations. I never though of that as having sex. There was no intercourse, no hugging or kissing, and only sex play for fun. Something I will always remember fondly.
My cousin and I are still close, and we both feel we developed healthy and satisfying approaches to sex in large part because of how we were introduced to sexual satisfaction. And we both agree our partners are also beneficiaries of that.