I went out with a friend. the worst idea in the world

My name is Lucie, I'm 18 years old and I live a totally ordinary life.
The day after my birthday, I went out with Jules, a friend from high school. We went to a bar to order beers, then went to a deserted park. Night was beginning to fall.In the half-light, I went to Jules leaned towards me and suddenly everything went black. My life changed forever...