These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Values Dissonance: Some of the sexual metaphors and phrases spoken by the characters would seem demeaning and shocking if someone said them to people today. For instance, today you probably wouldn't tell your sister not to let her husband get her 'in pup.' Or refer to your sisters being in heat. Or tell someone that you got your wife 'in foal' just months after marriage.