This ode to sexual consummation can be found in—of all places—the Bible. It is the Song of Solomon, a poem whose origins likely reach back to the pagan love songs of Egypt more than 1,200 years before the birth of Jesus. Biblical interpreters have endeavored through the millennia to temper its heat by arguing that it means more than it appears to mean. It’s about God’s love for Israel, they have said; or, it’s about Jesus’ love for the church. But whatever other layers it may contain, the Song is on its face an ancient piece of erotica, a celebration of the fulfillment of sexual desire.