1896 Sex & Marriage Manual advocated for Sexual Penetration without Ejaculation. What we now refer to as Tantra or Queer Sex.

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Alice Bunker Stockham was part of a broader Swedenborgian movement which wanted to reform the masculine gender to be more androgynous. The ritualized sexuality she promotes can still be experienced in California under the banner of Tantra, the modern adherents have forgotten the christian occult origins and instead attribute an exotic asian spirituality.
The Christian Theosophical roots are exceedingly interesting because of the basis in Androgynous Divinity and fundamentally Gender Heretical beliefs. Stockham’s rituals bear an uncanny resemblance to the work of Stan Dale at Harbin Hot Springs in the 1970’s.