First, TF2chan’s rules state that genderbend fics should include a disclaimer somewhere near the top. Portraying a presumably cisgendered character as transgendered is genderbending [with the exception, perhaps, of Pyro, because shit who knows about that thing,] particularly if you plan on using that as justification for getting that character pregnant. The rules also say that you should have a disclaimer near the top if you’re going to use OCs—This is a bit more debatable, but I personally think that if you’re going to give a class a name, personality, and appearance different from that portrayed in the canon, it’s an OC. These sorts of things are dealbreakers for a lot of people, so giving fair warning is only polite. Second, a bit of queer etiquette; as a matter of respect, choose your pronouns based on gender identity, rather than sex. If Medic believes that she is female, then she is a “she,†regardless of whatever bits she might have between her legs. It might seem trivial to you, but to many transgenders, pronouns represent the acceptance or rejection of their identity. It matters to most humans. Third, if Medic’s gender identity is such a major aspect of her motivation for wanting a child, then we should have known about in the first chapter, when she was first shown as wanting a child. It does no good to give us this information after you’ve confused us beyond redemption. Not to mention, this kind of surprise gets less and less pleasant the later it comes. Whether they mean to or not, people make a lot of assumptions about a character based on their gender, so when you tell them halfway through the story that by the way, Medic’s a lassie, they’re going to have to go all the way back to beginning and re-evaluate all the assumptions that they made when they still thought Medic was cisgendered, and that’s mental exertion, gross-like. Forth, being on hormones “sometimes†as opposed to consistently does very little to bring about the physical changes most transgenders desire; It just mucks up your mood and gives you acne. Fifth, your logic for Medic wanting a child because she’s getting too old to have children is... rather non-sequitur. I’m getting too old to become a rhythmic gymnast but that doesn’t mean I want to be one. Sixth, I’m really curious as to how Heavy feels about all this. Takes two to tango and that, and there’s a pretty big difference between having a gay boyfriend and a transgendered girlfriend, especially if that transgendered girlfriend wants to give herself a vagina specifically to so that she can bear you dark-eyed children. It’s certainly not what I sign up for when I touch a man’s willy. Seventh, what is this business about Heavy and Medic knowing each other before the war? What was the stereotypical Soviet Russian doing in Nazi Germany, and why, if he spent his impressionable youth in Nazi Germany, is he still a stereotypical Soviet Russian? Is this backstory necessary for some reason, or could we just as well defer to the implied canon, in which each class comes from an entirely different background? If it’s necessary, why isn’t it being exposed early so that the readers have time to adjust to this major change in their basic assumptions about the characters’ history? Eighth, you shouldn’t have to explain your story in a comment. Your story should justify itself.