This is by no means a completed treatise on the topic, but rather a short explanation and dissection of a particular technique and its mechanics.
The term sex magick can be applied to a myriad of practices that combine ceremonial elements, symbolic gesture or personification, sensory exacerbation, mental and physical self mastery, and complimentary aesthetic values. Ego dissolution powered by the primal self, that of which in itself is a meditation on synchronized duality, symbolic to the physical act.
The ceremonial elements of sex magick can be elaborate or seemingly non-existent. A spontaneous tryst injected with magical intent has its own ceremony as elaborate as a scripted ritual, albeit more subtle in presentation.
Sensory exacerbation is a pivotal element in sex magick. While holding intent and inciting the senses through touch, taste, scents, sounds and visual choreography of the act, the attainment of gnosis becomes synonymous with the physical experience. The induced sensations of pleasure or pain, or projection onto a myriad of fetishes, or even the high level of anticipation become one with the intent itself through the dance. The excitement process becomes an alchemy of sorts: A literal self personification of the intent. Becoming what you desire and giving it life.
This is also where it becomes difficult. As you get closer to orgasm it becomes exceedingly difficult to hold fast your intent in your mind. The physical sensations that brought you up here are a double-edged sword as they become what takes you back down. Meditation and practice in mental discipline are essential tools for any magician, here is one instance where they will really pay off. You are having physical and chemical changes in your body upon arousal and during intercourse that literally alter your brain. The amygdala which controls your emotions is effected by pleasure, increasing feels. The nucleus accumbens and VTA (ventral tegmental area) work together to release dopamine and your pituitary gland goes all crazy releasing beta-endorphin’s, vasopressin, and oxytocin.
Through all of this you must hold your intent clearly in your mind. It can help to use tools such as mantras, visualizations, chants, pre-positioned or creative visual aids and sigils. This is an area where the aesthetic value of ritual can really come into play by adding constant environmental support to your magick, helping you to focus on your intent. Remember, sensory exacerbation. While again I would like to reiterate these tools are not necessary, they can be helpful,
The cliche scented sexy-time candles can be helpful in setting the mood, however using scents that you would associate with a magical working would be much better. For example I may forego a rose scented candle and use sage or a ceremonial incense to excite the sense of smell and support the atmosphere of magick. The sense of taste can be stimulated through food and drink prior as well the different tastes of your lover during. Just be aware excessive imbibements prior to the working may make it more difficult to maintain focus. Visual hacks can include sigils, glyphs, lighting, colors of both environment and dress, and your lovers body. You could use non intentional visual cues as well, such as the way the shadows play on the wall, Whatever helps to support the atmosphere of magick and resonates with your intent.
Upon the moment of orgasm the lateral orbitofrontal cortex shuts down. Located behind the left eye, this region of the brain regulates behavior control and reasoning.You literally lose control during orgasm, it is not just a figure of speech. At this point in the practice, if you have successfully maintained the focus and embodiment of intent, having the last confines of mental control repressed by orgasm allows the working to become fully realized and powered by physical sensation and the anchors set to it.
After I recommend simply enjoying the festivities and afterglow.
So mote it motherfucking be and all that.
Choices as to what best fits the nature of your work and your own temperament will of course help to shape your own idiosyncratic methods, most likely you will develop multiple methods with different applications. Sex magick in general has varied connotations, definitions and methods throughout multiple paradigms.
Magick can be powered by sex or performed by it.
The ritual can include the act or can be the act itself.
The body can be used as a temple in which to perform a working or it can be utilized as a fetish through adornment and symbolism. Role playing and invocation can come into play depending on the practitioner/ ritual, as well as psychological personal exploration.
Side Note: Ritual baths and anointment are common in many systems as a precursor to ritual and most sex magick. Warm water excites the circulatory system and diverts blood from the head to the body. Brain activity is reduced to a meditative, tranquil, pre-sleep state. In contrast cold water narrows blood vessels sending more blood to vital organs such as the heart and brain. Depending on your working one may be more appropriate than the other. Anointment with oils, lotions, or perfumes help to initiate sensory overload with the ritual and touch of application as well as any scents.