In the millennia-long history of their species, they had always been conquerors. Not mere planets but entire star systems were absorbed under their might. Whether these beings were accepted as the conquered or the subjugated was a decision made by The Arbiters.
To each Arbiter was given the opportunity to select an indeterminate number of Supplicants. These would be the voices that pled Humanity’s case and in whom the fate of all would rest. They were selected by no process discernible to anyone.
Rosamilla had been one such Supplicant. That she had grown to be so much more had been both unplanned and inconvenient to Shal’Na’Thra’Kamura. She had chosen the unlikely path of appealing to his peoples’ near-forgotten love of the arts and literature.
For every day of the Arbitration Time, she’d inundated him with the words of Browning, Keats, Shelley, Byron and the redoubtable Shakespeare. Though he was neither the youngest nor most impressionable of the Arbiters, he was nonetheless unexpectedly moved by her offerings.
Neither could recall who had made the first overtures, but though alien they might be to each other; their anatomies were, still and all, compatible. It was forbidden and would, most surely, have warranted his deserved destruction, but Shal’Na’Thra’Kamura would not deny her. He felt the inescapable lure of…Love.
On a night much like many before, as she drifted into slumber, she murmured the now-familiar words. "From forth the fatal loins of these two foes, a pair of star-cross'd lovers take their life". He smiled, secure in the knowledge he’d achieved his true purpose.
“The Arbitration” was naught but a high-flung phrase for shore leave for his people. As with all conquered species, the males would labor and die at their behest while the females served to ensure his peoples’ continuation. Star-cross’d lovers indeed!