Nothing bad actually happens in this series.
Throughout, there are implied relationships between characters, however nothing explicit is shown.
Male characters are occasionally seen shirtless (typically with swim trunks or board shorts).
The main character gets some dates from humans without showing signs of actual flirting.
There are no mentions of the original Japanese version. The one on Netflix is the 4kids dub and is censored. I don't know what's in the original but I'm guessing it's moderate.
(Some episode-specific details have been deleted. Only provide series or season details. Episode specific items should be added to the episode.)
In one of the episodes team rocket has a dream about them at the beach laying down and a girl is wearing a bikini and a man is shirtless but wearing a swim suit but it is brief
Beach episodes throughout, bikini clad women are shown.
A running gag involve Brook flirting to women's, and he get mild beaten by friends and his Pokémon afterward. This is played for laugh and comedic purposes.
Nothing coarse or flashy since it's a kids show.
Some female characters wear crop tops.
Occasional adult humor and fanservice (e.g. Adult fantasies, crossdressing, offensive dialogue)
During the XY season, a running gag involve Bonnie usually asks every single women's to marry her big brother, but he rejected her offer at times. This is played for laughs.
Various female characters-notably the recurring character of Jessie-wear clothing that is revealing, tight-fitting, or both.
The closest the Pokemon show comes to nudity is characters wearing swim suits.
Pokemon themselves are naked (for the most part) but have no visible genitals, and the issue of how Pokemon reproduce is always carefully avoided.