I have this idea of a type of sissy that's either so feminine they become a petite woman but still insist they're a boy, and get treated like they're a sissy/femboy
Or perhaps this idea of just a normal girl being sissified without like trap TF or whatever, where they kind of both de-feminize and feminize them, while having a far more objectified and humiliating type of femininity; e.g., sissy femininity
I think this is distinct from bimbo or bimboification, because I think bimbo implies some level of sexual liberation or just straight-up cluelessness. Female sissification demands them be aware of what's happening to them, and how humiliated but turned on they are by dressing like a little faggy boy and having her tits showing like a sissy boy in mesh femboy tops or whatever. People ask her if she's like trying to be a trans boy and she insists she's still a woman despite looking like the perfect little twinky sissy sub faggot she is