>>36520987Using human sexuality here as a baseline
2% of female Eevee have the ability to evolve into Lesbeon when attract is used on them by a female Pokemon of the same egg group.
Lesbians are around 2% of the population, can only be female, and Eevee has a lower ratio of females than males at 12.5% female.
So 2% of 12.5% is .25% meaning it will take on average hatching 400 Eevee to acquire one with the potential to evolve into Lesbeon. A shiny potential Lesbeon would be ridiculously rare at the average of around 1 for every 4,000,000 eggs or 1 every 2,000,000 eggs using shiny charm. At the best odds of shiny charm + foreign Eevee breeding it would take
around 200,000 eggs to find 1.
By contrast it would only take 58 hatchings on average to obtain a potential Gayeon.
Just for thoroughness a potential Transeon would be around 0.3% or less of Eevee. Biological male transgenders are 3 times more common than female transgenders, so that 0.3 will be roughly around .0023% for male Eevee and .0007% for female. All in all it will take around 435 eggs to hatch a Transeon-M, and around 1450 eggs to hatch a Transeon-F.
Pretty fun.
This is all assuming Eevee are comparable to humans and that I didn't mess up my math anywhere. If we're going on closer animals to Eevee like foxes the numbers are exponentially (like WAY, way rarer) lower or even entirely nonexistent as exclusive homosexual behavior has only been seen in sheep and humans, and general homosexual behavior is seen mostly in primates, dolphins, and some birds.