Isn't Drew just a trans woman? She said she had not finished the full surgery of female transformation. So she is not a futa yet? No pussy?
But I hope she will transform to woman completely in the ending
She actually mentions it during the Peyton scene, in the first chapter she shows up in, she says she'd love to do a full transition but is worried the medical science isn't there yet for what she'd like to get, later advocating she'd very much prefer if she was, like, in some Star Trek Utopia of Tomorrow with a "gender switching" box where one could come in, change genders for the day, then go out, given how difficult (and in some nations both costly and dangerous) it is to transition medically IRL as is.
Then again, considering how Hunter as of yet unseen partner in crime (my money still on the Nurse's husband) did somehow manage to give Starling a perfectly working pussy nerve ending wise, and given how bottom surgery did take some major leap forwards lately for trans women, that could also be an excuse used by Drew not to fully transition in general and still feeling herself a woman even with a cock (She mentions Dysphoria about her original male features during her phrenology talk with Lucia during her good ending, but doesn't mention it over still having a cock for example), which is a sentiment other trans women IRL share while others do want a full transition, but then we'd open a discussion over, like, Transmedicalism and shit, and this is hardly the place and time.