The witches were successful in preventing the birth until Historis, daughter of Tiresias, thought of a trick to deceive the witches.
(Male versions of the bed trick are rarer but not unprecedented; a classical instance occurs when Zeus disguises himself as Amphitryon to impregnate Alcmene with the future Hercules. Similarly in Arthurian legend, Uther Pendragon takes the place of Gorlois to impregnate Igraine with the future King Arthur.)
Jupiter is bored with life on Mount Olympus and decides to have an affair with a mortal woman, which turns out to be the beneficent Princess Alcmene.
According to the myth, Sufax was the son of goddess Tinjis from her second marriage to demigod Heracles, and the grandson of god Zeus and mortal Alcmene.
In 1799 he had been given command of the frigate HMS Alcmene, during which time he captured dozens of small merchant ships and had a hand in seizing the Spanish treasure frigate Santa Brigada with $1,400,000 on board.
Hercules enters the house to find Alcmene and Demetrius kissing on the sofa.