Turns out Gardevoir learned sweet scent behaves as an aphrodisiac to human women, allowing her to grow a small harem [Officer Jenny/Nurse Joy/Jessie/Ash's Mom] (didn't catch name of artist, source in comments)
Those entering the forest often never return, overwhelmed by pheromones from the forest dryads and compelled to stay for the rest of their days [origian]( valerie-v)