Succubus Steam

A succubus half-breed, such as Violet, who hobnobs with the highest echelons of Victorian London society, is a bride in a difficult marriage of extremes. Any act that wants of propriety, and she would find herself banished to the wilds of Cornwall where her full-blooded succubus sisters live and thrive. Yet she prefers the company of mortals, even if she must occasionally risk her reputation by engaging in discreet sexual liaisons.
When Violet's great uncle dies and bequeaths her his laboratory and home, she crafts an artificially intelligent automaton named Adam to sate her carnal needs. Her plan is coming along nicely until an incubus from her past, and the unwitting model for her invention, discovers her secret. Violet has good reason to be wary of losing her heart to Lyle, but perhaps Adam is the key to fulfilling all of her desires.
Be Warned: menage sex (MFM), anal sex, Adam is a very large, steam-powered sex toy