A one-night stand, two pink lines, and Sugar Hill’s most notorious spare heir. Accidental pregnancy · billionaire heir · forced proximity Chef Willa Langston has three keep control, keep your distance, and never—ever—sleep with a client. One midnight slip-up with billionaire art dealer Rhys Beckett shatters all three. Six weeks later a busted pipe, a collapsed ceiling, and a positive pregnancy test leave Willa homeless, queasy, and desperate to stay off the Beckett gossip radar. Rhys has other ideas, starting with a key to his penthouse and ending with his name on the birth certificate. Forced proximity turns sizzling tension into filthy kitchen encounters, midnight pillow talk, and feelings Willa can’t whisk away. But the Beckett legacy comes with iron-clad expectations, and Sugar Hill’s rumor mill already smells a gold digger. When an unexpected scandal threatens Willa’s hard-won business, she has to cash out, walk away, or gamble everything on the man who’s been playing the long game for five years. MISTAKE HEIR serves accidental-pregnancy angst, dominant-hero heat, and a chef who refuses to be anyone’s garnis, served piping hot in a binge-worthy novella with a guaranteed HEA.