Ok, I'm not sure if I can do this here, but I'm actually looking for a Kag/Inu fic.
Kagome and Inuyasha find a dieing woman and when they try to save her, they find that she'd had a baby with her. Kagome decides to keep him because the child is hanyou as well.
After a while, the baby is hungry, and Kagome starts lactating spontaneously. Inuyasha always covers her and the babe with his haori because he tells her it makes him feel like he's a part of them.
I remember that when they travel, the infant is silent and does not move. Inu explains that it's a pack 'survival' instinct.
Please, if you know what I'm talking about, let me know. I know I saved it a while ago, but I lost all my bookmarks
~Thank you!
Saholia