I've seen a few A/B/O fics in this fandom and I love them and want more.

I would love to impregnation kink up in a fic. Where Newt and Graves decide to start a family and basically can't keep their hands off one another. Maybe like Newt trying to get frisky in a inappropriate place and Graves being all 'we can't do it in front of your creatures' or something.