The pleasure taken from a BDSM relationship is linked to the dynamics of power that exists between submissive and dominant. The humiliation and the freedom to dispose of the submissive exalts and gratifies the sense of power of the dominant, while the submissive is gratified by the absence of power (which is associated with a certain amount of stress, such as the one linked to the action and having to make decisions) and the feeling of helplessness before the partner overvalued, underscored and amplified from being helpless in the face of stimuli that the dominant inflicts or bestowed by acting as an active subject.  In a BDSM relationship never fail, however, moments of great tenderness, where there is neither pain nor emotional tension, but just great relaxation for both partners. Usually at the end of a BDSM relationship the dominant partner practice aftercare towards the subject, which is dedicated with loving attention to his care elargendogli often of "bonus". In relations not continuous is the  subject, which is dedicated with loving attention to his care elargendogli often of "bonus". In relations not continuous is the "reconciliation" at the end of a game of domination, while in relations 7.24 these moments may be more random and not related to any specific situation. 

 
A search based on the administration of psychological questionnaires at both subjects practicing BDSM that non-practitioners, showed that lovers of BDSM are more extroverted, more open to new experiences, the more self-conscious and less neurotic than the so-called "normal." [2] According to the researchers, lovers of BDSM would have a greater awareness of their own needs and sexual desires, with the consequent decrease in reports of physical and emotional frustration that this implies. 
 
Sex in its traditional form is present in a minority in the measurement BDSM relationship, if not completely sublimated, nevertheless normal couple relationships are called by the Anglo-Saxon term vanilla (vanilla, of course, taste pleasant but not particularly tasty) to emphasize the less emotional intensity than the BDSM relationships.