Matt Sanders is the cutest boy they've ever met.

Bryanna Lindsay has been Matt's best friend since childhood, but he doesn't know her biggest secret: She's in love with him.

Bayleigh Lindsay has been in love with her big sister's best friend for as long as she can remember, and everyone knows it because even as a child, she isn't afraid to let her feelings be known.

Valary DiBenedetto met Matt right before they started sixth grade, and she fell instantly in love with the boy with adorable dimples: But will she be able to tear him away from the little girl who's always at his side? The little girl he also seems to adore in a way no one understands, because she's nearly four years younger than he is?

1. Chapter 1- Parties & Plans For The Future

   "It's inevitable that we're gonna get married someday."

2. Chapter 2- Cooties Are For Grown-Ups

   "The walls have ears, and they tell me all their secrets!"

3. Chapter 3- Puppy Love & Swimming Like a Fish

   "Don’t try it, she’ll punch you in the face, I promise...And don’t you dare try to come between them. My little sister will destroy you.”

4. Chapter 4- Ballroom Dancing & Sixth Grade

   "Promise me you'll love me for forever?"

5. Chapter 5- Girl Parts

   “My sister doesn't seem to think your sister is a threat, but she's wrong, isn't she? Bayleigh is the biggest threat of all.”

6. Chapter 6- Boy Parts

   "Fun? You wanna poke a girl with your penis for fun?" **PG-13 Content**

7. Chapter 7- Boys & Girls

   “You don’t love my little sister, Matt, at least not like she wants you too, the way she believes you do.”

8. Chapter 8- Be My Valentine

   "Go away Amy, I wanna be with Matt."

9. Chapter 9- It Takes Forever When You're Waiting

   “I’d do both sets of sisters, well, once the little one got older…”

10. Chapter 10- Welcome To Hormone High

    “She can just fuck off then. My sister is brilliant, and deserves to be here.”

11. Chapter 11- Patience Is A Virtue (We Don't Want To Learn)

    “And it’s not like we can tell your sister, she already went off on me once over your cucumber fetish.”

12. Chapter 12- Party Like It's 1999 (Because It Is)

    “If you keep talking like that, you won’t be waiting at all.” **Rated R**

13. Chapter 13. K-I-S-S-I-N-G

    "What the hell were you kissing Brie for?”

14. Chapter 14- Not So Innocent

    "Now Matt, please? I need you."

15. Chapter 15- So In Love That You Act Insane

    We can’t be accessories to his statutory rapist behavior if we don’t know about it."

16. Chapter 16- Won't Let Myself Believe that What We Feel's a Sin

    "...Once I turn eighteen, if we get caught doing things, they can throw me in jail. In the eyes of the law, it’s wrong.”

17. Chapter 17- Just Getting Older, Not Getting Over You

    “Act like a teenager for once in your life! Let go! Tell the world to go f**k itself!”

18. Chapter 18- Fast Forward

    "She's not there, no one knows what happened to her. She just vanished."

19. Chapter 19- Pain

    “Tell me Bay, who does Amy think you lost your virginity to?”

20. Chapter 20- It's Not Too Late, It's Never Too Late

    "I can't go through this pain again!"

21. Chapter 21- The End

    **THE FINAL CHAPTER**