Sherlock frowned. What if he did that again, and William actually didn't have enough milk to drink? He shook his head. He should have thought about this more. He just did it without thinking about their son.

"I'm sorry." He said again. "I know you will need to drink my blood soon, John, so that William and get those proteins that he needs from a Vampire's blood. Perhaps when he goes back to sleep."

He touched William's head as he nursed. "Thank you for letting me do it. I don't think I should do it again, but I very much enjoyed it. I think we were both.. getting a bit excited from it." He said with a little blush.