[QUote=THorne]But as for a Dom/sub relationship, can it be false imprisonment if the sub consents? What if she had a safeword, affording her the option to terminate her "imprisonment" whenever she feels threatened? And is it abuse if the sub invites it? And what about sex while in bondage? Can that be considered rape, even though the sub consents to it? [/Quote}

I suppose when you think about it a submissive, and more specifically a female, possesses a hugely powerful weapon.