"Rin, when your daddy asks a woman to marry him that's when you'll get a new mother." Kagome corrected gently. She was annoyed with Sesshomaru for leaving her alone with Rin to answer her questions. Nonetheless she corrected the little girls suggestions.
Rin on her part wasn't stupid, she did know that tooth fairies didn't give her mommies. But she was desperate to find out if and when Kagome was going to be mother to her.
"Does it take long to marry someone?" She asked. Kagome looked at her and seemed to finally understand what the girl wanted – a woman to look up to in life. She decided then and there that she'd try to be that for Rin regardless of her relationship with Sesshomaru.