Religious Family Incest Pics Letting Aside Religious And Cultural Prejudices, What Is "wrong" About Incest??

Letting aside religious and cultural prejudices, what is "wrong" about incest?? - religious family incest pics

I do not feel any desire of every member of my family, but I do not understand why, outside of any cultural bias, many people in a "violent" to seduce a person who is his mother.
From a moral point of view (there is no God, Bible, Jesus is allowed), why incest "wrong"?