My friend, sister and I found 2 kittens in the street. They look like they are week or 2 old. We found their mother but when we left them. They ran towards us and the mother ran. If we left them, they could get hit by a car. They were moving everywhere so we had to let them in the house. We found them in a deserted house. From my house to this house is like 1 minute. We had no choice but to let them in. When my dog Stella(cocker spaniel saw them, I thought she would be aggressive and try to bite them but no. She would try to smell them and then she cries. She puts her paws on them and cries again. When 1 of the kittens move toward her, she lies down and then when the kitten touches her paw she does this really weird movements and cry but seem playful. I tried to find the mother but she is not there. Did we do something wrong?