the submissive partner to be experienced, and seen by them as of enjoyment or value. Good pain (2): Good pain and bad pain refer to perception of pain as pleasant vs. unpleasant. Sensations that non-practitioners imagine to be painful are instead perceived and described by BDSM practitioners as pleasurable or a good form of pain, in much the way that muscles after a workout at the gym may be sore, but in a good way. The transition of perception from "bad pain" to "good pain" may require a warm up beforehand. Gorean: A subgenre based upon the rituals and practices created within the world of Gor in the erotic novels by John Norman. Through separate from the BDSM community, the two communities may share similarities especially in master/slave relationships. Gunplay: The practice of including actual (or simulated) firearms into a scene. Handkerchief codes: A code used to indicate to others one's area of interest in a sexual context, ex: a Handkerchief worn on the left indicates a top, on the right indicates a bottom. Generally used in an lgbt context. Hard limits: What someone absolutely will not do; non-negotiable (as opposed to "soft limits"). Hogtie: Tying up a submissive's wrists and ankles, fastening them together behind their back using physical restraints such as rope or cuffs. Impact play: Part of sensation play, dealing with impacts such as those from whips, riding crops, paddles, floggers, etc. Kinbaku: Literally means "tight binding.". Kinbaku is a Japanese style of bondage or BDSM which involves tying up the bottom using simple yet visually intricate patterns. Also can be referred to as shibari. Kinbaku-bi: Literally means "beauty of tight binding." Kinky sex: Any sexual act that is generally considered to be unconventional. Klismaphilia See enema play. Knife play: Slow, methodical sensation of the bottom with the edges and points of knives, usually without cutting the skin. Fear of the weapon plays a large part in the stimulus of the bottom. Limits: What someone will not participate in (hard limits), or is hesitant to do so (soft limits). Masochism: Act of receiving pleasure from acts involving the receipt or infliction of pain or humiliation. Masochist: Person who enjoys pain, often sexually. Master/slave: A consensual relationship in which one person receives control (the Master) when given it by another (the slave) for mutual benefit with a focus on service and obedience. The slave will often accept a