Liz Irwin has been going out with Luke Hemmings for a Month. But the thing is Calum Hood is also dating her. They both treat her right. Make her feel Amazing. One night changed her life. And she ends up pregnant. With the band on tour she leaves to her friend Jake's Timeshare. She goes through this alone. What happens when she finally goes to the doctor? And he tells her she has twins. And Luke has another girlfriend but Calum has been missing Liz like crazy. But is unable to let anyone in. Because he starts Self Harming himself and not eating but no one notice. Who is the father? Who will help Calum? Find out what happens when the baby comes? Will the Twins Be Luke's or Calum's? Find Out in Secret Twin [5Seconds Of Summer Fan Fiction] This story has some self harm & eating disorder triggers.