It should first be observed that accidents and inadvertent harm can befall S&amp;M practitioners irrespective of the level of caution that they exercise. It is unacceptable to require responsible adults to run the risk of prosecution whenever they engage in a consensual act of sexual expression.  Further, relationships, even sadomasochistic relationships, can break down and become acrimonious. There is a risk that an embittered partner who formerly consented to prohibited S&amp;M activity might try to use that fact to blackmail or persecute his or her ex-lover.  The opposition state that the freedom to dissent from laws regulating one’s private conduct begins to break down when the number of people engaging in a “private” activity grows. Why should the freedom to engage in a particular sexual activity imply a trade off against the freedom to choose how many people we engage in that activity with? Interacting with multiple sexual partners is not, in itself, illegal in the majority of western liberal states, but it does not exclude other sexual fetishes, such as S&amp;M. The opposition is disguising a further limitation on sexual freedom- the freedom to engage in group S&amp;M- as a concession to liberalism.  Finally, the awareness that a particular activity is proscribed can affect an individual’s ability to enjoy that activity. The pleasure inherent in free expression of sexual identity is compromised by the knowledge that discovery will lead to prosecution and stigmatization. As numerous accounts by those involved in the LGBT liberation movement have demonstrated, knowing that one’s sexuality is seen as something immoral and socially destructive is inhibiting and upsetting, even in private contexts.