Beth Reeks' friends say her first book "accurately represents teenagers now", and they are "really proud" of what she has achieved.
Her parents admitted they had no idea she was writing stories "to this length and to this quality", and described how the whole family was still coming to terms with seeing her work on the bookshelf.
Beth Reeks says she was fed up of reading about werewolves and fantasy. The 17-year-old now has a deal with Random House.
Newport schoolgirl Beth Reeks is celebrating the publication of her first book.
The 17-year-old (who writes under her school nickname of Reekles) was signed up by publishing giant Random House for a three-book deal, after her writing got an enormous online readership.
Her first novel, 'The Kissing Booth', is out in paperback today.
She says she began writing because she was looking for something to read herself, and fed up with werewolves and fantasy - "I just wanted regular high school romance".