See tinyurl.com/yaf9z6va (nsfw). Don't ask me why I have this.@Sakuratea
Not sure why you say that when hentai to begin with have logic of their own. Even if we had manga with couple that was so into themselves that it was bordering on sickness married + child, in other words to the point where neither of them would ever think about cheating, hentai would still be able to somehow ntr one of them....