Ao looked up at the clouds racing above him, the crowds cheering around him - then he looked back down to meet the eyes of his opponent. Ao smiled.
Ao and his opponent were Avorri, the people of mastery. His species had unisex children who as they reached maturity became male or female based on whether they were dominant or submissive. A pack of Avorri children would usually end up with one or two male masters, and three or four females who would go to his harem. To make sure during this time the male would fight and subdue its playmates. An exchange would happen in these fights, some of their maleness moving to the victor.
But always bad things happen. Sometimes a male would have his females die in childbirth, sometimes a female would have her male protector die in a war. In these cases the lone male or female could fight and dominate others of their gender, and after several months of constant domination, a gender would change to fit.
Avorri scientists had long ago figured out how to speed up this grueling process. One fight in the pits was all it took. You'd come out with a woman, or as a woman. Either way a member of Avorri culture once again.
And so Ao met the eyes of his opponent. This man was smaller than Ao, but large chested and square jawed. Ao could almost taste the masculinity he would take. Men who came out of the pits were huge, in every respect, arms bulging with muscles, and cocks swinging like donkeys, pumped with the masculine power of two men.
Both combatants were naked. Oiled till they shone. Ao could see his opponent was semierrect - he was hard as a rock.
The judge, a woman, also naked and oiled for the audience's pleasure, came down into the pit. She raised her staff and the colosseum roared, then she knelt, staff down on the ground halfway between them.
