It would not have been a strange thing for Daenerys to have married her brother. Not for the Targaryens anyway. But Aerys thought it more advantageous to reward Jorah for his service.

Daenerys stepped out of the carriage with the help of the Gold Cloak. She had a thick pelt around her to keep her warm. When she saw Jorah standing before the carriage, clad in his armor, she couldn't help but blush.

"Her Royal Highness, Daenerys of House Targaryen, Princess of the Seven Kingdoms!" the herald announced her officially.