Opposite of Lecherousness

[PK]

Originally Posted by ciaran_skye

I'm making a character who is asexual due to psychological trauma and romantic advances simply don't work. Normally I'd call it sexual orientation and the canonical 0-point feature

Full stop; you had it right, here. This is just sexual preference, which is always a 0-point feature in GURPS unless it comes bundled with traits based on society's reaction (Social Stigma, usually, often at a quirk level). Aside from such bundled traits, "who my character is attracted to" is always a free choice for the player (or GM, for NPCs).

Being asexual has some use -- effective immunity to Sex Appeal (unless someone has the ability to alter your sexual preference), for example -- but it has similar downsides, such as standing out in most groups over time (not as a negative Reputation, just as the kind of feature that makes one stand out in others' minds) and being unable to seduce well yourself since there's nothing you find sexually attractive about anyone. There aren't any real balance issues here; it's a feature. If it makes you feel better thinking of it as Quirk: Asexual [-1] and Perk: Usually immune to Sex Appeal [1], feel free to treat it as such.