Reminder folks, Yuuki's got too much mojo to safely do it with a lot of women, even succubi. Meanwhile Nono's problem is that she succs waaaaaaay too much during the act.
I'm not sure if Nono shared with him her issue; if not, according to him he's trying not to hurt her. If she did, then old habits are hard to break especially ones involving emotional damage, the fact that he allowed her in and even brought her back to live in close contact with him is a good first step to the eventual bed-shaking lewds.
I'm not sure if Nono shared with him her issue; if not, according to him he's trying not to hurt her. If she did, then old habits are hard to break especially ones involving emotional damage, the fact that he allowed her in and even brought her back to live in close contact with him is a good first step to the eventual bed-shaking lewds.