Iris stepped through the door when she was as good as invited in. When her sister didn’t wait to see her in and close the door, she turned and did it herself. The room they passed through got barely more than a glance - only enough of a looking over to make sure there was nothing amiss about it. The rest of Iris’ attention was on her twin, and she drank in the sight of her dark haired sister in a way she knew she wouldn’t be able to when they were face to face.. At least with her back turned, Arke couldn’t misinterpret the look.
It was very much in Iris’ nature to want to be close to those she cared for, and while her twin was very much one of those people, years of experience had taught her that her first instinct may not be the one she should act on. At the same time, not running to Arke and hugging her as she had their father not very long ago seemed wrong as well. After almost starting across the room anyway, consequences be damned, Iris made herself stand still, hands gently playing with the sides of her skirt instead of clutching them in a death grip.
“I didn’t want to have to find you without your permission. I waited as long as I could.” The only reason she’d been able to wait as long as she had was their father. As long as she knew he was close by and knew where Arke was, Iris had felt better about staying away. Thaumas would have been welcome where she was not.