>>8666489
vanilla is lots of reclaiming sex, consent being verbalized every time, and strict rules/limits to sex with other men. hardcore nts is basically consensual cheating, breaking/bending of rules, and toeing the line with ntr. bull impregnation usually being a landmark sign of hardcore. terasu mc's >>8666318 doujin pretty much covers all of these aspects pretty well if you're curious to what exactly it looks like