Fiction; non-con, pokemon, bad end
It's not unheard of for young pokemon trainers to get raped while camping at night, turned into the alpha's bitch for encroaching on their territory.Even when its drilled into them to only stay at poke-motels or designated campsites, though always omitting exactly why, some trainers decide to rough it anyway.
In most cases, the event is a one and done thing; mostly damaging their pride than anything. Although in some cases the trainers are never seen again, drug back to the den for a life of breeding.
However the rarest cases are of the trainers who's own pokemon are forced to watch or worse participate; forever damaging the team's balance.
No matter however many badges they earn or new pokemon they catch, they'll always be the team's bitch.
Feeling the cum oozing out of their hole as they take on the next gym, having to offer themself up just to get some semblance of even footing for long enough to earn the badge.