From Shamans' new book:
When we have a lot of casual sex, and a lot of sex without connection, we attract underground beings called "sexual succubi". "A sexual succubus" is a spirit that attaches to a person's energy field with suction cup-like limbs, and uses it as a feeding vessel.
They draw darkness to the lower chakras, where it gathers, thus creating even more guilt and shame for each sexual act. These emotions, which are the tools of darkness, give the subconscious signal that it should manifest illness, because we feel that we should be punished. The "sexual succubus" is the starting point for any sexually transmitted disease.
It doesn't matter if it's a flirt, a one night stand, or a hook-up: All our sexual encounters must be devoted. Everything should be done with affection: Every kiss, every caress, every coalition, everything.
Should you be so unlucky to get such a "succubus", Shaman recommends a ritual he calls "Second Chakra Scrub". It involves, among other things, rubbing a magnetic stone on the lower abdomen in order to expel the spirits.