My Bestie's Billionaire Brother: A Surprise Pregnancy Romance (Emerald City Billionaires)

My Bestie's Billionaire Brother: A Surprise Pregnancy Romance (Emerald City Billionaires)

by Alix Vaughn

4.5 (578)

4.5 stars from 578 reviews. Top 94% of Contemporary Fiction books we track.


$4.99KU

Last checked: May 31, 2026

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Fans of these authors will like this...

  • Emily Henry
  • Christina Lauren
  • Talia Hibbert

Fans of these books will like this...

  • The Unhoneymooners
  • Get a Life, Chloe Brown
  • People We Meet on Vacation

Perfect for you if...

  • You love the fake-dating trope but want genuine emotional stakes beyond the initial con.
  • You're drawn to stories where pregnancy isn't a plot device but the real turning point that forces both characters to grow up.
  • You enjoy Seattle settings and the specific tension of forbidden attraction between someone and their best friend's sibling.

Maybe not for you if...

  • You prefer slow-burn romances where characters take their time building trust; this one moves quickly into physical intimacy and then major life changes.
  • You're looking for a hero who's emotionally evolved from page one; Charlie's playboy habits are part of what needs fixing here.
  • You want lighter contemporary romance without the weight of unexpected pregnancy and co-parenting drama.

About this book

Charlie Astor is Seattle's most eligible billionaire, and his sister's best friend has harbored feelings for him since adolescence. When he proposes a fake relationship for the summer, she accepts despite her reservations. The arrangement is straightforward: she will attend four high-society weddings as his date to satisfy his parents, and he will help her secure an audition with the Seattle Symphony, a crucial career opportunity. What begins as a performance becomes complicated when Charlie's physical affection and attention feel genuine. Their chemistry intensifies, and she discovers she is pregnant with twins. Faced with this revelation, Charlie pledges his support for her and their children. However, his history as someone who has consistently avoided commitment raises questions about whether their pretend romance can develop into a lasting relationship. This romance centers on a billionaire, his sister's best friend, and the unexpected pregnancy that forces them to confront their connection.

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Price History

Kindle price over time. Green zones = periods when the book was free.

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Free$2.50$4.99Jun '25Aug '25Sep '25May '26
$2.99$4.99

Price has been stable at $4.99 for 12 months. This book rarely goes on sale.

Sales Rank

Amazon sales rank: lower number = better selling book. #1 is the bestseller.

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#3,795#129,778#255,760Jun '25Dec '25Feb '26May '26

Currently around #18K in the Kindle store — a steady mid-list seller. Climbing the charts — 80% improvement recently.

Rating & Reviews

Purple line = star rating over time. Blue area = total review count growth.

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4.0★4.5★5.0★Jul '25Jul '25Oct '25Jan '26May '26RatingReviews

Currently 4.5★ from 578 reviews

Gaining approximately 40 new reviews per month. Steady word of mouth growth. Rating has remained stable at 4.5 over the tracking period.

Sale Prediction

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Free$2.50$4.99Jun '25Aug '25Sep '25May '26PredictedMay '26

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Prices shown in USD from Amazon US. We continuously pull new data to improve tracking. If dates look old, it usually means there has been no significant change since the last data point.

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Alix Vaughn

1 book on Vagrant Press

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