"She's thirteen," Nico said pointedly as they followed Persephone deeper into her castle. He wasn't so stupid as to be outright insolent, but he wasn't going to let Hazel get dragged into whatever debauchery included wearing less clothing than they had on. Whatever business Persephone got up to when his father wasn't around was their business, but he didn't want him or Hazel to have any part in it.
He had to admit that Persephone had done an amazing job with the bower she had created for herself, however. He only saw her when she was in the Underworld, so he'd never seen her use her powers full-out. This definitely showed why she was the Goddess of the Spring.