Sex magic is older than sin. In its simplest form, just failing to release in orgasm and simultaneously disbursing or directing the crude vitality skillfully throughout the arousal, buildup and prolonged plateau phases, then (in dual-angelic cultivation) the partners tag-team the sparkling energy until sublimating it or else sublimating oneself, and, in turn, riding out the waves… honestly, just thinking about it bores me~ hahaha.
All this has a purpose, either for heightened meditative states, or else eliciting higher orders of energetic projection if that's your thing.
On a much more pedestrian level of subtleties, it is possible to become sensitive enough to sexual energy, impersonally, that through some energetic attraction (as if in a vacuum), spiritualized sensuality flows into oneself quite freely (quite obviously so in proximity) seen as a train of pairs of glowing globes in column, and felt distinctly as they enter one's body. Some people here might get off on that if I insinuate that vampirism is involved~ heehee!!
It boils down to the subtlety of being imbued with a selfless nonpsychological awareness which seems to beckon such encounters with the (sexual/dual) nature of Creation. It's the level of one's refinement in terms of the absence of psychological referencing one sees (call it a lack of personalistic "views"). Energy just seems to flock toward one's attention so stripped of the personally referenced.
Again, what is one to do with all this free energy? I just smile and wear giant sunglasses.