ERDM-131 "Mom, just a little bit..." "Stop it! Any more and it'll become play!" My busty mother was still wet even though she refused... 4 hours

A mother worries about her son who lives with his parents despite being an adult, and wants him to become independent as soon as possible. However, he doesn't care about his parents' feelings and continues to ask her things like "Is dinner ready?" and "Where are your underwear?" However, her son has a reason for not wanting to leave her. Today seems to be just another normal day, but the son makes up his mind and enters his mother's body...