legitimacy
I was reading in the databanks about the Episod II characters, and I noticed in one that Padme was referred to as Anakin's lover. Not wife. I've thought for a while that there wasn't a wedding contrary to popular belief, but this actually makes it a possibility. I've always thought that a wedding was too improbable because there would be too much proof of their involvement. Secrecy is the key i it's forbidden.