I Can't Start a New World with My Family

You've been chosen by the "Humanity Colonization Project" to be the Progenator of a new world. One man is sent to a new planet with 5 randomly selected women with the purpose of breeding and populating a new world. However, to your surprise, the women who have been sent to populate your world with are in fact your ENTIRE FAMILY! You're going to have to really make a case you can be a good leader if your family members are going to be willing to sleep with you and have your babies...