If your children are still small or yet to come, realize that, in large measure, their healthy sexuality hangs on your healthy attention and teaching and touching and loving. I say this especially to you fathers. For both boys and girls, the development of a healthy sexuality hangs more on strong, loving, godly male figures in their lives than on the women in their lives – though both are very important. Biblically and experientially and psychologically this can be shown – that the role of the father (or of some crucial man) is paramount for normal sexual development of boys and girls.
John Piper