What is far apart but close together?

Question

No dirty answers please. theres no need for them. i'll report you if you do ha ha ha!

Answer 1

your arms?

Answer 2

A sibling who look far apart but bond close together. .

Or age?

Answer 3

isn't that just part of a riddle that you have missed details to? Your eyes (but the riddle is:

We are twins,

We are close together,

But we will not touch,

But far apart,

We become one.

What are we?)