An inevitable and unexplainable phenomena in which those of a bright skin complexion are attracted to those of a dark or darker skin complexion and vice-versa. It is a legal maxim in which no one is immune. Defiance of this rule will result in a devastating backlash in which the blasphemous relationship will not stand (i.e. break ups, cockblocking, impeded advances with either sex, etc.). It must be abided under any circumstances.
Dark skinned guy: "Man i just hooked up with this yellowbone man." -The Rule of Law
(Backlash) Bright skinned guy: "man i thought i was gonna get that bright girl, but all three of her black ass friends kept cockblockin me!" - The Rule of Law