They first met on the stairs of their apartment building, when André was a sad five-year-old boy in tears and Peter tried to comfort him. His parents used to beat him and call him names whenever he did something they didn't like and the first meeting took place in such a context. Peter took André in his arms and André spontaneously kissed Peter on his mouth. His grandparents had taught him that such a kiss was supposed to be extra loving. Peter understood this as a clear sign that the boy did not receive enough love from his parents.
A few weeks later they met again and André followed Peter to the basement, where the boy started kissing him again. This ended in a sexual contact which André experienced as extremely wonderful.
André did realize that what he was doing with Peter was somehow 'forbidden', though less because of the sex as such than because of the intimacy with an adult who was not his father or mother. André was afraid he might loose his adult friend and took the initiative to keep the sexual contact going.
They continued having a sexual relationship until André became
nineteen years old and got a girlfriend. In 1997, the sexual aspect had disappeared but they were still friends.