Zeus shook his head. “I have no intentions of separating you,” he said right away. And he didn't. Not only because three of them had expressed the desire to stay together, but because he had seen how well the worked together first hand... and he also knew that forcefully separating them would probably breed some animosity toward him. That was the last thing he needed.
What he needed, though, were answers more like the one Bia had given him. That had been a declaration of skill and an obvious pride in doing what she did. Zeus pointed a finger at her for only a second, in a sort of... 'that, precisely that' indication. Then he nodded at her once before looking back at the other three. “Those are very useful qualities, Bia.
“The rest of you. What are your... specialties?” Zeus resumed his pacing. He had to find, with their help, ways to keep them occupied. “I won't have you just sitting around idle all the time. I want to know what you are good at and what you like to do... and how those things can be applied to life on Olympus.”
This was, essentially, like an interview for employment. If they proved to be potentially useful to him, he would keep them in his retinue; something he was sure would not only have Styx' blessing, but be along the lines of what she had intended when she sent her children to him.