The Luna's Harem
Her word was law.
However, once in the Harem, their birth rank won’t help them; it will be up to them to behave. Power games were known to happen from accidents, mishaps, and framing, and ran rampant after all; each male in the Harem wanted as much chance as the main to have a pup with their ‘mate’, as her main.
Even then, this was rare unless she went into heat while her main was away, and, depending on how long her heat lasted, it affected their chances.