During a patrol Waterstar met a loner who was interested in joining a clan. After conversing with her for a while the she-cat decided to become a warrior, given the name Fennelberry, and brought along her kits. The clan accepted Fennelberry and her kits, thankful for new members to strengthen their clan. The two kits were both named Dustkit though...

(Also Acornmask has Lightningkit in Moon 5 but I don't think that really deserves a chapter)