How many licks does it take? 😂
Seriously, from this discussion it appears there could be many variables: (1) self-identification, (2) physical attraction, (3) frequency, (4) deportment, (5) sexual activity, (6) emotional attraction, (6) perception. And there are others not alluded to here, e.g., anatomical features. I default to self-identification because do we really need more stratifications in our society?