The Role Exchanger logged those reactions and, immediately, found a heavy contrast with previously scanned data. It had run into but one other sentient species that separated its reproductive capability into two distinct genders. That one had been guided by one central controller intelligence. It had assumed the sounds made by the pair of 'females' had been attempts to alert its hives. But the most recent reaction to anomalies induced in sexual orientations ran counter to such a hypothesis.
It needed more data. A lot more data.
And so, the light flickered and vanished. To the apathy of most of the onlookers. Little did they know, they would be hearing much more of the light in years to come...
The light had sailed solar systems, it had little trouble with traveling across the face of the planet. In fact, it could move, run algorithms, input data, and execute functions so quickly that, to a human eye, it could very well be in multiple places at once.
But the light need only travel a short mile before it found an anomalous patch of land worth investigating. A fenced in area humans would know as a 'football field.' Though the Role Exchanger's databanks hypothesized it a penal labor camp.
And it was in this enclosure a girl named Alice sat, clad in a cheerleader outfit that had 'Eagles' plastered across it. She and her team had just finished their practice and the eleven girls lounged on the bleachers, chattering away and watching the football team slowly take the field. Eleven jocks, clad in similar yellow and blues with the words 'Eagles' on their uniform milled about. Not the full team, most certainly. Alice and her friends were all in all, quite pleased. Plenty of eye candy to please almost any preference, be it more lean and compact form of muscular, or a bodybuilder physique. One of the cheerleaders, an Iranian beauty sprawled out on the bottom row, batted her eyelashes and winked at a particularly bulky caucasian blonde.
The Role Exchanger needed to amend its hypothesis. There were equal parts men and women and, in most cases, penal labor camps were not places for breeding. At least without strictly supervised rituals. Perhaps this was a thrall breeding camp, then?
Only one thing remained certain: it was time for another live test.
"What the fuck?" Alice was the first to cry out. But her cries soon became a chorus of both masculine and feminine. Alice's skirt flipped, a masculine erection, angry red, pushed down her panties. Another girl found her head on a muscular male body. And yet another shot up as her lower body bulked up, grew body hair, and grew a dick.
The men fared just the same. The muscular soccer player found a busty, delicate female body beneath his neck. Another shot down a few inches as his legs slimmed down and his dick disappeared. And yet another lucky one 'merely' experienced a change in plumbing.
Indeed, be they headswapped, lower body swapped, or mere genital swapped, half the football team had tacos and the entire cheerleader team had hotdogs.