[Mantak_Chia,_Michael_Winn]_Taoist_Secrets_of_Love(BookFi.org)

Sex In the Esoteric Traditions 61
a method for transforming the sexual energy upward into a transcendent
internal orgasm, and is satisfied with simply increasing
and prolonging physical pleasure. It was originally intended to help
any royal male survive a long night of love-making with his harem.
Later it was popularized in America in the Utopian Oneida colony
in 1866 as a form of mandatory birth control. Certainly it is an
improvement over hasty ejaculatory sex, but ultimately lacks true
depth.