In summary, Coldfur and Puddleholly are siblings, members of a pretty novice TulipClan, that's still finding its footing as an actual clan. Puddleholly was chosen by Starclan to be TulipClan's medicine cat, much to her dismay, while Coldfur was more than honored to step up as their deputy.
Things™ happen, mainly Puddleholly taking a mate in another clan and bringing her kits into camp, facing harsh rejection by their leader. This piece follows how the siblings cope through Coldfur's different litters.
First, Coldfur had Scrubkit and Chirpkit with a passing rogue, and Puddleholly treats her kitting silently, resenting her sister for being congratulated and celebrated while her kits had the half-clan labbel forced into them.
Then, many moons later, Coldfur mothered a second litter of three: Lavenderkit, Lightningkit, and Luckkit. They too had outsider roots.
Finally, Coldfur took a mate in her own clan, and while she didn't carry him herself, she was enamored and would curl around Applekit in the nursery while her mate rested.
Puddleholly had grown to accept her position as a medicine cat, looking at how her family grew larger and larger, and maybe, just maybe; it wasn't all that bad.