Lux Lisbon Timeline and Summary

Lux, the boldest of the sisters, likes to show off her body by sunbathing in her yard in a skimpy bathing suit.
On the night of Cecilia's party and suicide, she flirts with the boys.
After Cecilia's death, she retreats, but not as much as her sisters.
She rebels against her parents' restrictions by hanging out with boys and smoking. She starts making out with tons of loser-type boys at different places on the school grounds.
She puts serious and ravenous sexual moves on Trip Fontaine after he visits her house, and gets punished and grounded.
She still tries to rebel by smoking at school and forging notes from her mother to get out of class.
Eventually, Lux seems to heal a bit from her sister's death and becomes more involved in school.
Trip convinces Lux's parents to let the sisters go to Homecoming on a group date.
Lux sneaks away with Trip and has sex on the football field. She starts to cry in the middle of it. He leaves her to find her own way home, and she gets home way after curfew.
Lux never leaves the house again. She's pulled out of school.
She starts luring men to the house and has sex with them on the roof, even in the winter. She's afraid she's pregnant (she's not) but she gets HPV.
Lux takes the lead in tricking the boys about rescuing her and her sisters, and escaping with them from their family.
After distracting them while her sisters kill themselves, she commits suicide herself by running the car in the garage.