I'm currently writing Fanfiction about two(maybe adding a third) characters. Both are of undefined gender. Both faces depression, which will be a big part of the story. I want the two to develope a both physically and mentally intimate relationship but it must be strictly kept non-sexual or romantic. The two go through a lot of tough times together. One of the characters is way underage, around twelve or so, facing problems such as neglect and bullying. The other is undefined but most likely around legal adult age (18), facing self-loathing and nihilism. I want to stay away from parent-children relationships. They meet after running from home and failing suicide. So is something like this possible? Does a relationship like this even exist? If so, can I get some tips to keep romance out of the story?