One reason I chose a low tech world where people live rough lives, aren't sexually enlightened and are genuinely foul to each other. It's an environment thats set to produce some gritty warriors. It's also an environment where everyone has a very hard life, even the women tend to be a rugged looking. Kinky sex isn't widely explored and magic is rare.<br/><br/>Something that looks even close to a nymph or succubus is purely in the realm of fantasy. Low magic means they have few resources to combat magic, and crapsack means they are used to suffering.