Elizabeth Stevenson-Horan is the secret twin of Niall Horan, member of the famous boy band One Direction. In fact, she is such a secret twin that even Niall and Elizabeth didn't know about each other for the first thirteen years of their lives. Now, though, the two are so close it's impossible to tell that they were ever apart. However, Elizabeth isn't known to the public eye. As far as any of the fans know, there are only two Horan's and both are boys. The boys don't know about her either. Niall has always wanted to introduce them but Elizabeth is too scared because of her awful past with boys. Since then, she has never trusted any guy outside of her family. But what will happen when the five finally meet and Louis finds himself stuck in the middle of the two twins?

Hi I'm Naomi Jamie Horan, and yes I am Niall Horan's sister, I'm the older twin by 5 minutes, and none of the lads know I exist, they don't know that Niall has a sister, or a twin sister to be exact. But Mom and Dad are going on a trip somewhere for like a year, and Greg has some other important things to do but I'm alright with that, he does it fro his family, so Mom and dad decided to make me stay with Niall and the other lads, And Niall being Niall was ok with it, because he will finally see me after like 3 years, so come with me to my journey with my idiot twin brother

Okay i got this story from @musicgirl200. Niall felt lonely when he was on tour with the others, and he heads to the local orphanage to adopt the cutest toddler ever and her name was Harmony she had crystal blue eyes that sparkled in the sun or at night. Blond hair like Niall had, and he knew she was the one for him cause she was too cut to leave alone in the orphanage all by herself with all of those bullies who pick on her a lot, and doesn't even care about her at all. He learns he got a lot more the what he had bargained for when he adopts Harmony

My third Niall Horan and this time Niall Horan is driving down the highway going to the doctor's cause he has been sick and along the way he finds these two baby girls who are twins, and they isn't that old at all. He pulls over and takes both girls with him to the doctor's to get checked out to make sure that they are okay and everything. After the doctor's he decided he is going to adopt them as his daughters. How will Niall handle twins read and find out

What happens when a baby girl that isn't old at all gets left at the doorstep Of Niall Horan house. He wakes up to her crying and he sees that she was left there out there in the cold rain to die. Niall brings her in, and sees that her mom couldn't care for her much more. He decided to care for the baby girl as his own daughter