Autumn, Wow I FEEL so happy for you!
At some point I will come out to my sister in the United States. I live in South America, a long way away, so there is no hurry as such.
I have great relationship with my sister, so I hope that whenever I DO decide to come out with her, she will be accepting.
Most of my family -- most, but not all -- of my family was accepting when a female cousin of mine came out to our family as lesbian.
So, with my sister and even other family, maybe I will be okay. We will see.
What great news for you!
Johanna.