Someone's got a big sis.

I love the feeling of "big" and "powerful" the older sister gives off, just something about it. also kind of hope they've got some incestuous delightfulness going on.

Wait, what?
How can they be three years apart in the first part, and six years apart in the other two parts?

Edit: Alright, that was a mistake, the artist said it was supposed to be 9 instead of 6.