Undeniable by Cara Dion

Pretending to be in love never felt so real.
Noah doesn’t believe in falling in love, and he definitely doesn’t do relationships. But unless he can convince his future boss that his playboy days are over, he’ll lose out on his dream job. When his little sister’s best friend suggests that they pretend to date, it seems like the perfect solution. Or it would be, if she wasn’t the only woman who’d ever made him question his own rules.
Callie doesn’t need anyone else to take care of her, especially not her best friend’s overbearing older brother – even if she has been in love with him since she was twelve years old. Determined to get her mother to stop meddling in her life, a fake relationship with Noah could be the answer to both their problems. But sharing a hotel room for a week wasn’t in the plan, and the more time they spend together, the more it feels like she’s only fooling herself.
Can they face the truth they’ve been denying for years, that love is the exception to every rule?