About BDSM, getting little side-tracked, I have had the chance to be handcuffed and I am still amazed how deeply it affected me. The peaceful feeling that came over me is something I have never felt before. Even my trembling and shaking (Parkinson's) calmed down because I was so relaxed
For most people who experiment with BDSM and for those who continue to explore how that particular fetish play works for them, it is the essence of surrendering total control to someone else. Once a trust level is established between Dominant and submissive, the sub can safely enjoy whatever sensations their Dominant provides. Naturally, good, clear, frank communication must take place prior to any session, with any limits or boundaries set and a safeword or safe sign agreed to, if that is needed.
Whether mild restraint is used or significant bondage is employed and physical endurance is tested by various means, the feeling of total security in the hands of a caring and loving Dominant can be overwhelming in terms of relaxation, warm fuzzy, etc. That's the part of BDSM that outsiders fail to grasp, having neither tried it nor dialogued with other participants - physical stress including sensory stimultion by pain and other means, and surrendering oneself to the moment, can indeed bring exquisite and intense pleasure.
As a Top and Dom, I have seen boyz (of all ages) almost swoon into a pleasurable sleep during some phases of our scene together, often after we have ended the intense part of play. Without getting overly graphic or descriptive out of turn, it is a massive sensual treat to see a 25 yr old dude almost purring like a tomcat, stretching out languidly and offering himself quite willingly after a session that includes hand and foot restraint, blindfolding, mouth gag, nip clips, paddling, electrostim, and hot wax. Despite what the uninformed might say or think, the activity was completely consensual and performed with conscious and ongoing attention to the sub's physical and emotional well-being.
That same dude returns eagerly at least once a month for a similar scene.