My Sister update

Gwen is now pregnant and due in November, I the father and she is my fulltime housekeeper and lover. As far as the rest of the family knows she had a one night stand and got pregnant. Except for our mother Annette who knows the truth and hasn't told anyone even our father Russell. She came for a visit and quickly guessed the truth, she told Russell that Gwen will stay living with me and I would take care of her and this stopped him asking Gwen to return home. Annette also said we should put my name on the birth certificate and told Russell this would give the baby a father name instead of unknown. Gwen wears weddings rings so people think she is married and I'm her husband.