I stand corrected. I had meant to use "facet" (part of a diamond) as a metaphor for the different parts of sexuality.

I guess I am too accustomed to putting "U's" into Canadian words that I figured (incorrectly) that one belonged in the word "facet" because it SOUNDS like it needed to be in there.

behaviour
catalogue
candour
colour
clamour
dialogue
favourite
flavour
harbour
honour
humour
labour
mould
moustache
neighbour
parlour
odour
savour
smoulder
tumour
valour
vapour
vigour