The Vanir and Brother Ass
But that doesn't mean that these gods are jotunns meant to subjugate us. Rather, they are gods we are meant to honor, and in so doing, we can transmute these energies. Specifically, Freyr and Freya are about the transmutation of these lower material impulses into higher impulses capable of residence in Asgard, the spiritual realm of honor.
What this means is that we are not bound by the amoral propagation-satyrs of Vanaheim, but we must heed them, listen to them, tend to them. They must be invited to the sabbat and engaged, because they are a part of us. Through intelligent play (and discipline, as Freya teaches), we may engage these satyrs and acknowledge them without letting them control us.
And Marnia Robinson in "Peace Between the Sheets" suggests a neurochemical connection between these events. Drawing upon recent biochemical research, it appears as if orgasm has the effect of lowering dopamine dramatically and raising prolactin. This in turn lowers the amount of oxytocin in the body. Wait, this isn't gobbledygook. Oxytocin is the hormone of bonding, affection, monogamy. Raised prolactin levels and lowered dopamine levels end up creating a situation where couples lose interest in each other through biochemical association and seek other partners. Robinson suggests this is a reproductive strategy of nature to spread the genes far and wide. In other words, the Vanic satyrs we're discussing. But if couples practice a form of tantric sex where orgasm and heavy, hot passion is avoided to focus on what Osho calls the "valley orgasm" of relaxation, high levels of oxytocin are produced which facilitate affectionate feelings and lasting bonding.
I would suggest that Frey and Freya teach about how to transmute sexual impulses of the lower Vanic realm into higher alchemical-spiritual connections which our modern science is in part discovering as oxytocin levels. There are whole Mysteries here on how to transcend bondage to the satyrs -- delightful as they are -- and discover peace.