User blog comment:Hyperborean/"The House of Hades" – official expectations blog/@comment-68.140.72.32-20130322105618/@comment-3146930-20130324155225

Look at Silena and Beckendorf. Technically they are step siblings because their parents are married. Aphrodite on the other hand is a child of Ouranos, making her the aunt of Zeus, Demeter, Poseidon, Hades, Hestia, and Hera, and the great-aunt of their demigod and godly children like Apollo, Artemis, Hermes, Ares, Hephaestus, Athena, and Persephone, making her the great-great-aunt of the 2nd generations of gods' demigod children (like Annabeth or Clarisse). Not to mention all her demigod children would be the cousins of the first Olympian gods, aunts/uncles of the second generation of Olympian gods, or great aunts/uncles of their demigod children. So Beckendorf was dating his great-aunt/step-sister, think about that.