We actually intended to introduce the animals more slowly to the kitten. We had her in the bedroom with the door closed and then let Sebastian in a while later.
We watched them sniff each other and then saw that all Seb wanted to do was play with the kitten. The kitten was a little apprehensive at first but then opened up to Sebbie. At one point the kitten got out the bedroom door (she's fast!) and our dog was immediately interested in her.
The kitten was a little put out at first by the dog. But by the end of the night they were fine together. This morning we woke up to the kitten and Sebastian chasing each other back and forth through the house. It's so fun to see them playing together.
The introductions went so much better than we could ever hope.