The Hookup

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—