Most people will think this is nuts, but to me the song is clearly referencing the fallen angels mating with women. I don't understand the "far from plastic" line, unless our technology is far more advanced than we know and somewhere transhumanism already exists, complete with plastic robot females. If so, that theory helps to support the idea of blurred lines, as in the fem-bots so resemble real women that the fallen ones are getting confused and restless bc while they are under strict orders not to touch human women, there's no such rule with fem-bots. Final thought - Pharrell's verse "what do they make dreams for, when you got them jeans on?" try substituting "GENES" for "jeans" and you get a different meaning.