Trust our Jim to take a simple concept, that of a son getting his revenge on his divorced father by seducing his step mother all of twenty two years of age...then liking the seduction so much, he seduces his mother; yep, his very own mother( in the Scouries Tradition ) and then he decides that fair is fair and makes love to his very own sister, who has loved him from afar. Oh, did I mention that his idea of revenge is to impregnate all three? I didn't? Sorry.
But do as I did, Enjoy!