I would be okay if Elerra would be party treasure sort of thing or sort even find her and she plays out as 'evil drow' who just happens to wear manacles and chains which magically compel her to obey (sort faking out her reluctance at first). But once learning the truth of her motivations and her faith then party could appease for her faith and hold as party 'property' like they did before already.<br/><br/>However Aron as lawful individual would wish a clear structure in such dynamic and ten cooks stirring a pot leads to no good so he could like assign someone as 'primary' commander for Elerra (so just figure out which Elerra trusts/listens commands most) or it's shifting thing that handler changes regular basis.<br/><br/>With my suggestion for Elerra being Aron's 'property' he would help with her act and keep her true faith and motivation hidden (minus her holy symbols on her). When Elerra feels she has to be humiliated or punished publicly, she simply disobeys or does a mistake (a minor but something which Aron can notice). To those outside their dynamic would view Aron either abusing/punishing a drow slave and get 'revelry' for punishing a evil drow and do not need get personally involved. Albeit it's a act as Elerra is one who signals when she wants do penance work in enduring such treatment in public.<br/><br/>Just to clarify the punishment/humiliation can be both non-sexual and sexual kind as well (but if Sinestra wants lean more sexual oriented stuff I am okay on it). Albeit as realistic setting folks may get shocked if Aron suddenly commands Elerra to strip naked in tavern.