Sibling the same

I've allways been close to my brother having our birthday on the same day him looking like the boy version of me dressing practically the same we got sick of people asking if we were twins and took it in turns to say no we're just brother and sister then them saying no way and then us saying in unison there is exactly tow years between us.
But they say people change and move on and with a new boy next door and my brother in a relationship as well I start to release we're getting older and I can't live in the parst for ever.