The Perverse Brothers: Introduction

Hello to all, my name is Carla and I'm going to tell you the story we're living with my sisters, half-sister, and half-brother. I'll tell you that we are 3 girls: me, Carla, 25 years old, Diana, 23 years old, and the youngest Sofia, 20 years old, who are sisters from father and mother, whose name is Laura, 44 years old, and we live with our mother and my new stepfather since my mother divorced my biological father because she found out that he had an affair with a girl much younger than him but it turned out that this damn foxy had infected him with AIDS we found out a lot later after my parents' divorce and that's why everything ended between them to the point where we don't even know anything about our real father until today and neither of us wants to know anything about him. And the other part of the family is my brother Alexander, 26 years old, and his half-sister Paula, 24, they are siblings from their father's side only, whose name is Rigoberto and is 46 years old because Alexander's mother found Rigoberto at a party one night and feeling an attraction between them went to the hotel where Rigoberto was staying and had sex but didn't take precautions and that night Alexander's mom got pregnant but couldn't tell him because she didn't know much about that guy with whom she had a night of pure passion and sex and what's more interesting is how Alex and Paula discovered their desire for each other since when they met they had no idea they were half-siblings and after several dates they had sexual encounters and later after Alexander's mom passed away, his aunt told him who his biological father was and he realized that it was the same father of the girl with whom he was having sex sometimes or in other words his girlfriend was actually his half-sister. Now knowing a little about us, I'll go on telling you how some situations unfolded so that everything can be understood between us and our brother. We want to share in parts and ask you to give opinions in the comments, plus if it's not too much to ask, one or two points since we'd like to read what you think or feel about each chapter of our story.