Divergent

In Beatrice Prior's dystopian Chicago, society is divided into five factions, each dedicated to the cultivation of a particular virtue—Candor (the honest), Abnegation (the selfless), Dauntless (the brave), Amity (the peaceful), and Erudite (the intelligent). On an appointed day of every year, all sixteen-year-olds must select the faction to which they will devote the rest of their lives. For Beatrice, the decision is between staying with her family and being who she really is—she can't have both. So she makes a choice that surprises everyone, including herself.

During the highly competitive initiation that follows, Beatrice renames herself Tris and struggles to determine who her friends really are—and where, exactly, a romance with a sometimes fascinating, sometimes infuriating boy fits into the life she's chosen. But Tris also has a secret, one she's kept hidden from everyone because she's been warned it can mean death. And as she discovers a growing conflict that threatens to unravel her seemingly perfect society, she also learns that her secret might help her save those she loves… or it might destroy her.

Debut author Veronica Roth bursts onto the literary scene with the first book in the Divergent series—dystopian thrillers filled with electrifying decisions, heartbreaking betrayals, stunning consequences, and unexpected romance.


Language
I didn't keep track, but the Lord's name was used in vain in various ways a couple times. "Hellion" was one I noticed, and I think they said "crap" 
In other words, there wasn't anything that really caught my attention - I almost always notice swear words.

Violence
When Tris joins Dauntless, the initiation ceremony is brutal.  The first thing you have to do is jump on and off a moving train. One boy refuses, and one girl misses. Afterward, they learn fighting, and have to fight each other. There's a lot of friction between the initiates, and one gets stabbed in the eye with a butterknife. Another initiate commits suicide because he wasn't doing well enough, and didn't want to be factionless (I'll talk more about this below). 
Someone is kidnapped, essentially groped, and then dangled over the edge of the huge cavern before she's rescued.
We learn that a boy was brutally beaten by his father with a belt 'for his own good.'
Tris beats a girl until she passes out during a match - it should be noted that the girl mercilessly bullied Tris, but I really didn't like how Four had to pull Tris away.
Toward the end, everyone falls under a simulation - their brains are controlled by a computer - besides Tris and Four. They have to fight their way out, and Tris ends up panicking and shooting one of her friends. Her instinct is to shoot to kill. She also shoots another person in the arm to get information. In order to release Four from the simulation, she stops fighting, as if to let him kill her.




Sexual Content
Tris is originally Abnegation, so when she sees people kissing in the lunch room, she sorta freaks out. xD Al likes Tris and tries to put his arm around her, but she rejects him as kindly as possible.
Tris comes out of the bathroom in a towel, because she forgot her clothes, and some of the bullies are waiting there. She grabs her dress just as one of them snitches her towel. She's able to cover herself, but the incident is cruel, and leads to lots of teasing about her body type.
And then there's the whole kidnapping scene (see above).
Okay, gonna tell you up front; Tris lurves Four. As in Wove Twue Wove (okay, maybe not.) Even though he's 18 and she's 16. And Four lurves Tris. But they have to keep their relationship a secret, since Four is one of the trainers, otherwise the others will think that her good ranking is due to his affection for her.
There's also an awkward moment when they kiss in a traincar (alone, as usual {stupid stupid stupid idea}) and she sits on him...awk-wurrrrd
Probably the heaviest part of the book is Tris's simulation. One of her fear landscapes involves Four and her in a room with a bed. He starts undressing her, and she quite firmly tells him that she will not have sex with him in a simulation. The whole thing is mortifying, if you ask me, because other Dauntless leaders were watching o.0
Afterward, she asks Four what his intentions are, since she's so much younger than he is. He tells her that he has no intention of asking her to have sex with him, but later on, if she still likes him, maybe they can. There's no mention of marriage, which annoyed me. Then, toward the end of the book, Four actually tells Tris that he loves her, and I was going "What the heck? you spent 75% of the book kissing, and you think you need to tell her that now? What did the kissing mean then??"
There's also a part where Four is showing Tris his tattoos, and takes off his shirt. He jokes gently with her about asking him to undress.


Other Negative Content
Tris refuses to forgive someone who did something horrible to her, and that leads to him committing suicide. She feels horrible, to her credit, and realizes that her forgiveness could have saved him. But then the Dauntless praise his death, they call it brave. Tris disagrees with that, she sees his suicide as an act of cowardness. 
Dauntless people, including Tris, get tattoos.
Tris starts to abandon her uptight and restricting upbringing in favor of the looser Dauntless lifestyle (which is not a bad thing, but she becomes more accepting of clothing choices and kissing. She herself wears a shirt that bares her shoulders)




If the simulation thing hadn't cropped up, I would totally recommend this book to ANYONE looking for a heart-stopping, stay-up-all-night, spend-$14-on-the-next-book-and-scream-that-the-third-isn't-out-yet, adventure. It's amazing. However, the simulation did crop up, so you'll just have to decide if it's something you want to deal with or not.


Edit: After a few days of stewing on it, I should tell you that I've realized that I'm not at all fond of her romance. It doesn't seem like romance to me; just physical attraction. It's definitely not a "Katniss and Peeta" or "Darcy and Lizzie" type love. I mean, it might be, but she dwells a lot on skin-on-skin touches, and Tris's reaction to it. That might be realistic, but to me, it just sounds kinda pervy.

PG-13. Despite my dislike of her romance, the book is awesome!