"Saints preserve us. She's your sister and she loves you, but she's more than that and both of you know it. You have to realize that when you...um, sleep with her, you're getting into a pool with a shark and then cutting yourself. If she makes a mistake and forgets that you're not as tough as she is, then she could take just a bit too much blood or put just a little too much pressure on you or even just bite you too deep. And then you'll be dead and she'll want to follow you."
"No. She'd never hurt me like that."
She sighed.
"I hope you're right. I trust that she loves you but sometimes you two are too close for your own good. Well, in any case, I know we're not a normal family. At some point I realized that this would happen. At first I thought about trying to stop it. Breaking you two
