BROTHERS & SISTERS 3 (2016)

Just as two feuding stepsisters mend their differences, their mysterious prodigal stepbrother returns to throw the family into fucking chaos--literally! He finds clever ways to land one, then the other stepsister, all just to get back at his dear-ole-dad. And the stepmom? He's got a raging hard-on for her too, but will dad catch on to his nasty ambushing in time or not.