Binding 13 is the first installment in the Boys of Tommen series by Chloe Walsh. Set in Cork, Ireland, in the mid-2000s, it follows Shannon Lynch, a girl who has been severely bullied at her previous school and is trying to start over at Tommen College. On her first day, she accidentally gets hit in the head with a rugby ball kicked by Johnny Cronin, the school’s star player and resident "king" of the campus.

While that sounds like the setup for a standard teen rom-com, the story quickly pivots into much darker territory. Shannon is dealing with a horrific, violent home life involving an abusive father, and Johnny is struggling with the immense pressure of professional rugby scouts and his own physical injuries.

The book is famous (or infamous) for its length. At nearly 800 pages, it’s a "slow burn" that spends a massive amount of time on character development and the internal monologue of the two leads. It’s a BookTok darling because it hits every "trope" that Gen Z and Gen Alpha readers love: the "he-saves-her" dynamic, the "found family" of teammates, and the "grumpy vs. sunshine" personality clash.

The most common mistake parents make with this series is assuming the title indicates the target age. It doesn't.

In rugby, the number 13 is the outside center—Johnny’s position. The sequel, Keeping 13, continues this naming convention. Because the covers often feature minimalist, "clean" designs or athletic imagery, they can easily be mistaken for Young Adult (YA) fiction meant for the 12-14 age range.

In reality, the publishing industry classifies this as New Adult (NA). This is a category specifically designed for readers aged 18-25, featuring characters who are technically adults (or late teens) dealing with adult-level trauma and explicit sexual content.

Ask our chatbot for more New Adult vs. YA distinctions

If you are considering letting your 14 or 15-year-old read this, you need to be aware of the specific triggers. This isn't just about "mature themes"—it’s about visceral descriptions of trauma.

The depiction of Shannon’s father is brutal. The book describes physical abuse in detail, including the psychological toll it takes on Shannon and her brothers. It is not "glossed over"; it is a central, heavy part of the narrative that can be very triggering for readers who have experienced similar situations.

Shannon is the victim of relentless, cruel bullying. We’re talking about physical assaults, public humiliation, and "mean girl" behavior that goes far beyond typical school drama. It’s depicted with a level of realism that makes it hard to read at times.

While the first book is more of a "slow burn" in terms of physical intimacy, the series as a whole contains explicit sexual scenes ("spice") that are written for an adult audience. The language is also very "salty"—expect a lot of Irish slang and frequent use of the F-word and other strong profanities.

The series touches on suicidal ideation, depression, and mentions of sexual assault (not between the main characters, but as part of the backstory/world-building).

Despite the heavy content, Binding 13 is consistently at the top of the charts. Why? Because Chloe Walsh is actually a very talented emotional writer. She captures the feeling of "first love" and the "us against the world" mentality that resonates deeply with teenagers.

Johnny Cronin is written as the "ultimate boyfriend"—he’s protective, wealthy, talented, and obsessed with Shannon’s safety. For a teen reader, this "white knight" fantasy is incredibly compelling. The "found family" aspect—where Johnny’s friends and his mother essentially adopt Shannon into their safe, loving circle—is the emotional payoff that keeps kids reading through the darker chapters.

With the 2026 release of the Binding 13 TV series, the "is it for 13-year-olds?" question has resurfaced. The show is rated TV-MA.

The producers haven't shied away from the book's intensity. In fact, the visual medium makes the domestic violence scenes even more impactful and potentially disturbing than they are on the page. If your teen is watching this, they are seeing graphic depictions of assault and hearing constant profanity.

Check out our guide on how to talk to teens about TV-MA content

If your middle schooler or younger high schooler wants a sports romance or a "found family" story without the extreme trauma and explicit content, try these:

Q: Is Binding 13 appropriate for a 13-year-old?

No, it is not appropriate for most 13-year-olds. Despite the number in the title, the book contains graphic domestic violence, severe bullying, and mature themes intended for readers 17 and older.

Q: Why is it called Binding 13?

The "13" refers to the rugby jersey number of the main character, Johnny Cronin. "Binding" is a reference to a rugby move (and a metaphor for the emotional bond between the characters), not an age recommendation.

Q: Does Binding 13 have "spice" (explicit scenes)?

Yes, the Boys of Tommen series is known for being "spicy." While the first book is a slow burn, the series as a whole contains explicit sexual descriptions written for a New Adult audience.

Q: What are the main triggers in Binding 13?

The primary triggers are domestic abuse (physical and emotional), severe bullying, physical assault, and grief. It is a very heavy read that focuses on trauma recovery.

Binding 13 is a well-written, emotionally resonant story, but it is not a book for children or younger young adults. It’s a "New Adult" novel that deals with some of the hardest parts of the human experience.

If your teen is dead-set on reading it, I’d recommend reading a few chapters yourself first—or at least having a very real conversation about the domestic violence themes. This isn't a book you just hand over and walk away from; it's a book that requires a lot of emotional maturity to process.

Learn more about navigating BookTok trends with your teen