Oh, you're fine, no treading at all! We're fraternal twins, about half an hour apart.
And nope, we don't look much alike. I'm 4 inches taller, I'm paler, I have naturally curlier hair, etc. Most people don't realize we're even sisters. Someone said we have the same nose (I can see that) and the same eyelashes (...okay...). We're pretty different in personality, too, but we love each other to pieces.
Here is a picture of us together. Not great quality but it is, after all, a picture of a picture.