Heracles and Omphale.
As punishment for his murder of Iole's brother Iphitus, Heracles (Hercules) was sent to serve Queen Omphale of Lydia for a year. There, he was forced to perform women's work, such as spinning, and to dress in women's garb, while the queen took over the hero's lion-skin cloak and club.
    The roles of Omphale and Iole have become conflated in this episode, perhaps because Heracles' servitude resulted from his passion for Iole. Boccaccio's masterful adaptation in De mulieribus claris, "De Yole Etholorum regis filia" (1.0003_Boccaccio) is primarily instrumental in this conflation. In the postclassical arts, therefore, Iole is sometimes identified as dominatrix; alternatively, Omphale and Heracles are sometimes shown as lovers.
    Another story, recounted by Ovid [Fasti 2], tells that Heracles found Faunus in Omphale's bed and (literally) kicked him out.

For discussion of 350+ adaptations of Omphale/Iole dating to the end of the 18th Century, see now
Enenkel, K.A.E. 2025. Theatre of Sexual Attraction and Psychological Destruction: the myth of Hercules and Omphale in the visual arts, 1500-1800. Leiden and Boston: Brill. — e-book available through HBLL.