I apologize in advance if I seem to stress my point too strongly.
It's just that as much as I love US's cultural production (music, movies, RPG, games ,etc), as a brazillian I just can't swallow this false moralism when it comes to sex.
Sex is just out there: magazines, TV, the internet, at the beach, on the street. And still the USA insists on treating it as something "unnatural". Oh, c'mon. Seeing a sorcerer dressed like it is on the book won't turn your kids into perverts. Not just that, they'll have sex one day, right?
It's just better to raise them presenting it as something natural but also giving all the right information. As much as you hide the hideous and scandalous Pathfinder artwork from them, at school they might just play doctor with their friends, and you'll probably never even know it!
11 out of 10 pornography websites are from the USA. So why pretend that sex is this God forbidden thing, that no child should be aware of? I'm not telling you to have sex in front of them, but it is not the artwork of a fantasy book that'll break your kids.
Treating sex as a huge taboo will only make them more curious about what it is, and maybe even traumatize them later on.
Just control the information so that they take each information step by step, as they age, but never treat is as forbidden.
Paizo, the artwork of the books are GREAT, and there is absolutely no reason to soften it. It is not inappropriate for children at all.