She wanted Christmas lights. She got temptation wrapped in six-foot-two of South African sin. Sienna is done with men. Like, D-O-N-E. After one heartbreak too many, she's armed herself with sarcasm, peppermint lattes, and a drawer full of battery-operated best friends. This Christmas, she's heading to her grandparents' postcard-perfect town of Constantia-a place that could give Hallmark a run for its money-to sip hot cocoa, dodge mistletoe, and avoid men who think "snowfall" is a pickup line. She didn't sign up for Caleb. Her grandparents' devastatingly handsome, maddeningly charming, and totally off-limits adopted grandson. He has an illegal smile and a weaponized accent with a voice capable of melting snow...and panties. But there's one glittering little rule hanging over both their heads: "no funny business." Not if Caleb wants to protect the future he and his brother have fought for. This Christmas, the line between forbidden and inevitable is thinner than an icicle on a hot roof. And if they're not careful, sparks won't be the only thing flying under the mistletoe.