Reiko hadn't experienced the pleasure of being a woman for a long time, and was chronically frustrated. Meanwhile, her son had reached the age where he was interested in women, but he couldn't tell anyone that his desire was only directed towards his mother. Then one day, an unexpected event caused their desires to explode. The son's out-of-control lust drove his mother crazy, and the pleasure she hadn't experienced in a long time caused her reason to crumble. The two of them sought each other like wild animals... spurting out juices of pleasure.