The Hookup by Erin McCarthy

Is there an equation for the perfect hookup? Turns out it’s a lot more complicated than one plus one. . . .

Sophie: Numbers are my comfort zone, which explains why my sex life is a big fat zero. Then again, if I’m smart enough to earn a PhD, why can’t I calculate a way to get a guy into bed, just to see what all the fuss is about? With my prima donna sister, Bella, getting married in Maine, I figure her wedding is the perfect opportunity for my little experiment. And Cain Jordan seems hot enough—he’s certainly drunk enough—to show me what I’ve been missing. Judging by the body of evidence, it’s a lot. . . .

Cain: Being stuck in the same town as my lying SOB twin brother, Christian—who may or may not be the father of the son I’m not allowed to see—is a hell of a reason to drink myself silly after the lobster boat docks each day. Any port in a storm. . . . But Sophie’s different. She doesn’t play around. And she’s becoming a habit I don’t want to break. Because the smartest woman I’ve ever met is also the sexiest—and the only one who makes me want to change.