To repay the debt her son incurred, mother Yurie Matsushima offers her own body. Her husband is away on business, and she keeps her secret meetings with the creditor hidden. By chance, her son witnesses the encounter and, feeling as though his beautiful mother is being taken by another man, is overcome with jealousy and forcefully pins her down. The incestuous union he once only dreamed of becomes reality. Enchanted by his mother's soft skin, the son passionately takes her again and again. Yurie, too, succumbs to the lewd pleasure brought by her son's manhood, climaxing intensely. This passionate creampie creates a new, forbidden bond between mother and son.