"She might also fall beneath the Ministry's radar," Nate pointed out. "She's a Muggle. They don't care what goes on outside their world, and they won't be looking at her, unless someone drags her into it that isn't us. She could probably be pregnant, bear the child, and it won't even be noticed until it becomes ours." His expression was sober. "On the other hand, if things that we're involved in now become a real problem, it could endanger her sooner rather than later. But that'd be true just because she's my sister."