Tessa Young is an 18 year old college student with a simple life, excellent grades, and a sweet boyfriend. She always has things planned out ahead of time, until she meets a rude boy named Hardin, with too many tattoos and piercings who shatters her plans.

Renee Delilah Parker has always been an average girl. She had average grades, she was funny and a basic tomboy. Her mother sends her to spend the Summer in Mullingar, with her paranoid grandmother, her grumpy grandfather and her slutty cousin. She doesn't want to do anything but stay inside all day on Tumblr. It all changes for her when she meets Niall Horan, the bad boy. Niall's tattoos, his attitude and his flirty ways annoy her, but she can't help the attraction he feels towards him. They're complete opposites: he's the punk bad boy, while she's the goody two-shoes. Soon, he shows her what his life is all about: skating, smoking, drinking, partying, drugs and sex. The normal life of a teenage dirtbag. Without either of them noticing, the start to fall in love. But what will happen when she'll have to leave Mullingar, to go back to London? Is it just a fling for them, just a normal summer love? Find out in Teenage Dirtbag. A punk Niall Horan fan fiction.