>>8714610
>>8716978
Well, it's because nuns are off limits in 90% of religions. I think those Indo-hindus have like temple prostitutes, but they're just hoes and fucking ugly to boot, so we'll skip them. Just know that real nuns can't do it, in fact I've heard being a full proper nun requires 3 separate oaths.
So how then can we get jiggy with nuns? Well, you've got nuns like Maria and Elena from Kango Shichauzo 2 like Maria and Elena who are evidently whores with a kid, these are the worst kind of nuns in my opinion, the Japanese artist literally had a cosplay fetish and did no research. Let us then discuss legitimate ways to get freaky with nuns then. You could have a game where the nun is kidnapped or perhaps isekai-ed and then taken away, to be raped or ravaged nightly and daily. Against a never ending assault, her mind would slowly be obliterated by the carnal assault. You could also include magic slowly deluding her mind and enfeebling it, with perhaps incubi or some such species. Another way is to use hypnosis in games where this works, to change her common sense and thinking patterns until she's your personal onahole. Magic can also work for what is described above;
Another strange but cool scenario is what TVTropes calls (Crystal Dragon Jesus) which is primarily about things like the churches in games like Dragon Quest, but is an interesting idea. For instance you could have a fantasy Catholic church with different rules about the fantasy pope or whatever, where perhaps you did a favor for him like saving his life, and as a result he made all the convents personal inns for you, and nuns were available for your pleasure. Also, I haven't seen it yet, but I saw an endcard for the Monster Musume anime about "subspecies" of monstergirls, and the cyclops/monoeye one has 4 girls: the standard species, the buddhist monkette, the blacksmith type, and the backbeard. I remember thinking and still do the second one is a shitty copout.