Very useful and insightful break down of this concept that is ordinarily considered very esoteric indeed, based on the connotation associated with it, and depending on the results that are sought after.

All traditions have until recently had some forms of ritualistic practices aimed at gaining some results for individual or group/ community welfare. Many societies around the world still have areas where such practices exist. In the Western World, it was the case with paganism prior to modern religions. And, in other places, shamans of sorts still exist.

That said, even within strict modern religious practices that shun such practices, prayers can be considered a form of Tantric practice. There is that innate tendency within the human psyche to believe that it can somehow, through some sort of ritual or alchemy or incantations expand the influence, powers, or possibilities if its coreself or soul (religious) over it's allowed opportunities by nature.

I see it as an attempt to cross the barrier between so-called magic and manifest reality. So, whether sexual desires/satisfaction are involved or not, all practices such as black, white, purple, pink, or whatever color magic stem from the same human aspiration of desire satisfaction. Invariably, demands will be for producing wealth, triumph over the enemy, health, and or reproduction to which sex is directly related.