Do fireheart and cinderpaw have kits together?

In the "Warriors" series by Erin Hunter, Fireheart, later known as Firestar, is a ThunderClan leader. Cinderpaw becomes Cinderpelt and serves as a medicine cat. They do not have kits together as Cinderpelt follows the medicine cat code and cannot have mates or kits. Their relationship remains platonic and respectful throughout the series.