"That's the way the regular vampires are where I'm from, too. You might see three together, but usually vampries are alone or with a mate only. Nomads. The only ones that can maintain any sort of familial living arrangements are the ones like us, vegetarians." She considered for a moment, then gave a shiver of memory. "Except the ruling family, the Volturi, but they're only kept that way by a vampire named Chelsea. She has an ability to sense bonds between people. And maintain them...or break them."