She's not a child anymore
You watch your sister walking with those filthy savages, a smile on her face, and you ask yourself when did she become so self-confident.
You remember her as a child, shy and clumsy, scared of her own shadow and, most of all, scared of you. But now, she stands tall in front of you as she's about to challenge you, and it's only because that crazy horse Khal Drogo fucks her every night.
Poor little Dany is just a fool: your slut introduced her to the secrets of amatory arts, and now she thinks she's a queen.
She thinks she can run away from you, but she's wrong: you're her big brother, her only Dragon master, and she belongs to you.
Nevertheless, when she dares slap you in the face, you hesitate and for the first time you really look at her. And what you see is shocking: little Dany has grown up while you were not looking, and she's not a child anymore.