People are very uncomfortable with shannon x Kiki because its unclear if Kiki is meant to be a child or not. Kiki is mostly just kind of annoying and they dont really have any interesting history together whereas Dorothy and Shannon obviously do.
I guess, I can't really imagine she's that far removed from any of the other main girls age-wise. I also think its a bit early to be judging her character given we've barely learned anything about her yet, other than the fact that she's a werewolf and that she's quite fond of Shannon.
Yeah I agree dont get me wrong. In her introduction panels, the guy next to the guy harassing her is like "are you a pedo or what?" So we can assume that she at least appears young enough for someone to call a sexual pursuer a pedophile. Later however, maria refers to her as a woman and Kiki herself says that she isnt much younger than Shannon.
Still, it was revealed that both Maria and Dorothy are both only 17. This in itself irks me because they both look and behave like adults. Theres no reason for them to classified as teenagers other than the author just wanted to appeal to pedophiles (which is a massive fucking problem in all of manga/anime.) With all of that being said, that could easily mean that Kiki is deadass like 15 which feels incredibly wrong and uncomfortable in a rather explicit ecchi. If shannon is equipped to lust for someone as lewd as Dorothy (who we're all just pretending isnt actually 17 at this point, she could easily be like 25 and not look or behave any differently) then it's a startling and concerning contrast to lusting after someone who both looks, acts and behaves as a younger teenager/preteen. Unless shes later revealed to just be a short and cheerful woman, it feels like a very jarring and morally dubious inclusion to the story.