Seventeen-year-old Quinn Hughes needs to be in top shape if she wants to medal at the swimming World Championships in ten months. This means no easy distractions, no matter how pretty they are. She’s still piecing her confidence back together after not qualifying for the Olympics, her relationship with her twin brother is getting worse the more he hangs out with the popular kids, and then Kennedy Reed suddenly squeezes herself back into Quinn’s life. The girl who was her best friend. The girl who gave Quinn her first kiss. The girl who hasn’t spoken to her since. Soon, Quinn finds herself juggling her new girlfriend, training for the biggest competition of her life, and discovering she’s not the only Hughes twin with a crush on Kennedy Reed. All these distractions are getting to her, and if she wants that medal she needs to find a way to stop drowning on dry land.

In the sequel to "All the Worlds Between Us," swimmer Quinn Hughes has given up a lot in order to be an Olympian: her social life, her love life, and everything that comes with being a normal twenty-three-year-old. Just days away from competing in the Tokyo Games, Quinn runs into her childhood best friend and high school sweetheart, Kennedy Reed. Five years earlier, they’d made a pact that they would try again if their paths ever crossed, and now she can’t shake the feeling that this is a sign. But Kennedy has a whole life in New York City, and Quinn’s at the opposite end of the country in San Francisco, struggling to redefine who she’ll be after the Olympics. Feeling lonely and lost from everything she’s given up, Quinn finds comfort in reconnecting with Kennedy, and they both discover that time and distance have only fueled their passion. As Quinn comes to terms with herself and what the future holds, she’s sure of only one thing: she’s not letting the only girl she’s ever loved get away for the third time.