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Off-Limits Baby Daddy

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Mixing business with pleasure has never felt so good Real estate heiress Saffron is determined to prove her worth. But rival billionaire Ethan—her brother’s best friend—is blocking all her efforts. She hasn’t seen him in...
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  • December 1, 2026
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A self-made billionaire falls for his best friend’s much younger sister in this steamy forbidden romance. Age-gap tension, rival family companies and a secret relationship that can't stay secret much longer.

Her Family. His Rival Empire. Their Secret.

Claiming your best friend’s little sister might be off-limits, but I’ve never been one to follow the rules.

Saffron is fifteen years younger, her parents hate me, and our companies are rivals. To her family, I’m still the driver’s son, even though my business overtook theirs years ago. None of that matters from the moment I see her again. Intense flirting turns into nights that shake the walls of my penthouse, and neither of us wants to stop.

We both know what we’re risking. Business and pleasure are officially on a crash course.

And we can’t keep this under wraps much longer. It’s not just the contract anymore. Saffron is having my baby.

Off-Limits Baby Daddy is the third book in the Brother Knows Best series, for readers who love age-gap romance, brother’s best friend tension, secret relationships and surprise pregnancy. Perfect for fans of Penny Reid, Tessa Bailey and Lauren Layne.

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Price: $19.99
Pages: 240
Publisher: Vinci Books Ltd
Imprint: Vinci Books Ltd
Series: Brother Knows Best
Publication Date: December 1, 2026
Trim Size: 7.80 X 5.08 in
ISBN: 9781036714710
Format: Paperback
BISACs: FICTION / Romance / Erotic, Romance: fake or pretend relationships, FICTION / Romance / Billionaires, FICTION / Romance / Medical, FICTION / Romance / Workplace, FICTION / Romance / Fake Dating, Romance: medical, Romance: the rich / famous / powerful, Erotic romance, Modern and Contemporary romance
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