"I can't take it anymore!" Yosuke, the son who is aroused by the large, swaying breasts of his F-cup busty mother, Kazuha, attacks her from behind. Kazuha is squeezed and kneaded helplessly, and she reacts sensitively to Yosuke's quick and easy touches. In order to stop Yosuke's crazy urges, Kazuha has no choice but to give him a blow job to get through the situation... However. Kazuha still hasn't forgotten the pleasure she felt when he squeezed her so hard...