Ichiro and Jiro, sons who love Yuki's K-cup huge breasts who have lived together since they can remember. A friend and a cousin, who came to visit the house to play, get ahead of the two sons who want to have a monopoly but can't put it into practice. Jiro, who happened to catch a glimpse of the situation, opens his mouth heavily saying that it's his turn this time. Yuki accepts such Jiro's cock gently with K cup milk. What's more, Ichiro finds out about this fact and begins questioning his mother, but...
