You know, I think it would be fun to have an Omegaverse concept where an Omega's height is based entirely on how safe their environment is when they present.
Like, yeah, most Omegas are small and delicate, but it's not just because they're Omegas that they're short, it's because they were safe when their first Heat came along and smacked them in the face. They're small because they didn't need to be big.
But the world is fucked up and sometimes, kids just have shit lives. And kids with shit lives who present Omega get fucking big, because they body recognises that they're in danger and grow as big as they fucking can to keep themselves safe, plus get their instincts rewired to focus on protection and aggression rather than being nurturing and submissive or whatever other stereotypes there are.
I just really want an Omegaverse fic somewhere where, instead of whichever big person is an Omega getting mocked or looked down on or thought of as less desirable for being a big 'mega, everyone looks at them and immediately knows not to fuck with them, because that right there is an Omega who's wired to attack first and ask questions later, so get the fuck out of their way before they get hurt.
The perfect protector, basically :D Or, you know, an excellent setting for angst, whichever floats your boat >:3