Susannah Nix
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The Boyfriend Hypothesis: Book 3 in the Chemistry Lessons Series of Stem Rom Coms
Find it at: 
​AMAZON
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BARNES & NOBLE
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KOBO
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BOOKSHOP.ORG
THE RIPPED BODICE
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WATERSTONES (UK)
​
​INDIGO (CA)
​BOOKTOPIA (AU)


The Boyfriend Hypothesis

2019 RITA® Award Winner for Best Mid-Length Contemporary Romance

After a string of lousy boyfriends, chemical engineer Penny Popplestone is developing a theory: boys are nothing but trouble! So she swears off men until she can figure out why they keep cheating on her. But her no-men resolution hits a snag when the mysterious and superhumanly hot barista at her favourite coffee shop strikes up a friendship with her.

Penny strives to keep things platonic, but when Caleb gives her the kiss of her life, she realizes he wants to be more than just friends. Tired of always being "good little Penny," she throws caution to the wind and pursues a no-strings fling with the hottie barista. It's not like they have anything in common beyond scorching physical chemistry, so what does she have to lose?

Her heart, it turns out. Now, this fanfic-reading, plus-size heroine faces an unsolvable problem. What do you do when being apart is unbearable...but being together is impossible?

An #OppositesAttract STEM Rom Com, book three in the Chemistry Lessons Series, originally published as Advanced Physical Chemistry. Each book in the series features a brand new couple with their own HEA and can be read in any order.
🎧 Listen to the Audiobook
(as Advanced Physical Chemistry)
​Narrated by Caitlin Kelly

AUDIBLE • APPLE 
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Advanced Physical Chemistry audiobook (aka The Boyfriend Hypothesis)

“Nix offers a sweet and often hilarious tale of a heartbroken heroine who makes an impressive rebound. … Readers will eagerly devour (her) smart and sexy story.”
—PUBLISHERS WEEKLY

Also in the Chemistry Lessons series:

The Love Code: Book 1 in Chemistry Lessons series of Stem Rom Coms
Dating and Other Theories: The feel good, opposites attract Rom Com, Book 2 in the Chemistry Lessons Series
The Law of Attraction: Book 4 in the Chemistry Lessons Series of Stem Rom Coms
The Best Friend Experiment: Book 5 in the Chemistry Lessons Stem Rom Com Series
The Infatuation Calculation: Book 6 in the Chemistry Lessons Series of Stem Rom Coms
© COPYRIGHT 2024 SUSANNAH NIX. ALL RIGHTS RESERVED.
​PRIVACY POLICY.
  • Home
  • About
  • Books
    • Upcoming Releases
    • Chemistry Lessons Series >
      • The Love Code
      • Dating and Other Theories
      • The Boyfriend Hypothesis
      • The Law of Attraction
      • The Best Friend Experiment
      • The Infatuation Calculation
    • King Family Series >
      • My Cone and Only
      • Cream and Punishment
      • Pint of Contention
      • Mint to Be
      • King Family Tree
    • Kilt Trip Series >
      • Kilt to Order
    • Starstruck Series >
      • Star Bright
      • Fallen Star
      • Rising Star
      • Lucky Star
    • Smartypants Romance >
      • Mad About Ewe
      • Not Since Ewe
      • Ewe Complete Me
    • Maybe This Christmas
  • News
  • Appearances
  • Newsletter Signup
  • Contact