some of my personal headcanons are that ben is a total 90s kid and intentionally uses outdated slang to make other ppl cringe. I also lowkey see him as plural bcuz of the arg and the hivemind thing, so my ben is a hivemind of souls too! when i write him in, ig human aus? hes plural :3
I also like the whole EJ being a demon thing. ik a lot of people hc him as a human possessed by a demon, but i rly like the thought of him being a full demon, with a tail and maybe even horns. i also give him a split jaw and weird hands and digitigraded legs and feet