Yes it is isn't it? Leviticus 20:11 tells what it means to uncover your father's nakedness.<quoted text>
I wonder why incest was so prevalent among the people of God in those days? Abraham married his sister ( they had the same father). Ham slept with his mother,Noah's wife and fathered Canaan by her ( that's why Noah cursed Canaan). Lots two daughters slept with him and was impregnated by him.
Makes my flesh crawl.