
Zilpha |

For what its worth, I'm fine with "mix and match custom sexuality changes" being a thing in the setting. I just don't think it should come from the cheap off the shelf Serum. At least as I interpret it, the serum works by sort of "throwing a switch", which is logical enough an idea for a serum that you basically just quaff to use. However, if your trying to build a new sexual physiology outside what "normally" occurs in your species ( and with the understanding that "normal" is a bit of a loaded word )? That probably should require more involvement then just drinking a potion. You are doing an extensive redesign of your genetics and physiology in a way that would require a ton of customization and a lot of double-checking.
Or basically? This would probably be a thing where you pay a couple hundred credits to a professional, who uses their expertise to help you design your new body.
except that it is specifically worded in a way that mixing and matching is a possibility,
"This elixir’s magic functions instantaneously and can’t be dispelled, though drinking a second elixir of sex shift either reverts the character back to a former form or allows them to adopt alternate sexual characteristics, as they choose."
The "or alternate sexual characteristics" part implies that it does not have to be one or the other. and then later is this part,
" The elixir has no effect on characters who are pregnant or are of races with no sexual differentiation. Most races have a wide spectrum of sexual differentiation, some common, others more rare. Therefore, most creatures can decide how this elixir transforms them. An unwilling imbiber can choose not to change at all."
since both is an, admittedly rare, naturally occurring configuration, as are most intersex/androgynous configurations, the rules seem to support the mix and match method
EDIT: The last 2 quotes seem to be from an Errata, as they do not appear in the original thread quote, but do appear in the AoN description, which is the official online rules database, so it seems they changed the wording to be less ambiguous on the intersex options