Kirin had never left the Oni dungeon ever since she was born inside it.
As such, she was very excited to see the outside world. Eren needed to complete creating the body of the homunculus for him to take Kirin outside.
Kirin wanted to know everything about humans. She had seen them as sacrifices in the Oni dungeon. Now she wanted to interact with them on a personal level. She had also been learning Edinburgh's official language from Eren for the same reason.
Kirin wanted Eren to consummate their marriage when they left the Oni dungeon. She didn't want to start a new chapter in her life while staying in the same place.
Eren accepted her wish right away. Sharog, Lasha, and Luna kept him busy nonetheless. He also didn't forget to practice his ranking technique.
