I'll give up disguise kit proficiency then, if that's alright? There are already players specializing in that.
And it's ok with me if my PCs ability to exist remains a mystery, or if at some point down the line you want to use DM fiat. I'm personally less interested in the science of it and more interested in the relationships - What else (besides the obvious) did the arrangement between my PCs mother and father entail? Why did this seem like a good idea? Did they truly love each other? Would my PCs dad be happy to see him? You get the idea.
And it's ok with me if my PCs ability to exist remains a mystery, or if at some point down the line you want to use DM fiat. I'm personally less interested in the science of it and more interested in the relationships - What else (besides the obvious) did the arrangement between my PCs mother and father entail? Why did this seem like a good idea? Did they truly love each other? Would my PCs dad be happy to see him? You get the idea.