Ravensblood Forest you've cat to be kitten me right meow

Though Sirius had been appreciating the cool, slimy texture of his mother's nose, he was just as happy to receive a nipple instead. He hadn't been hungry, but he began to suckle with a ferocity that his mother was surely familiar with, by then. Hungry or not, Sirius took his nutrition very seriously. He rarely wasted an opportunity to drink deeply from his mother's teats.

He was especially pleased to be alone, with no siblings to push aside. He loved them dearly, of course, and they were great fun when he wasn't eating - but Sirius disliked fighting for his meals.