Responses

That isn't BSDM. When you slap someone like that the shock makes them unclench.
BDSM is a set of sexual practices and preferences that require consenting play, such as Bondage, Dominance, Discipline, Sadomasochism and Submission, etc. It requires a discussion between the two consenting adults before anything can happen. The motto is safe, sane and consensual because you must adhere to those for safe play.
Am I the only one who hate when they do something like smack the butt of uke. Can someone say to me what is bdsm? It is same to what MD do to Chanwoo?