Stepmom incest please don't call me mom.

Miki has been remarried for five years and has built a happy family. However, her only problem was that her son-in-law, Kenji, still wouldn't call her ``mother''. That was to be expected; for Kenji, Miki was not a ``mother'' but a ``woman'', a sexual object of which he constantly had obscene fantasies. One night while her husband was away on a business trip, Kenji happened to witness Miki masturbating out of loneliness, and at that moment, she was unable to distinguish between fantasy and reality.