"If I hadn't seen it with my own eyes, I'd say it wasn't even possible," she replies. "And I'm not<em>just</em>talking about you turning down the chance to impregnate me. If nothing else, the ascension to the next tail requires one of an equal or higher tail, to encourage it. It can't be done spontaneously, which is one reason why we have such a tight-knit society." She sighs, and leans against him, eyes closed. "So many questions, so few answers."