Sweatshirt fabric is popular for its comfort and suitability for light exercise. Its soft, lightweight feel makes it easy for anyone to wear casually. Sweatshirts have become more than just a fashion item—they're commonly seen on mothers in everyday life. Then one summer day, the son noticed his mother's usual appearance in a different light. Her crotch was snugly fitted, her voluptuous, round hips tightly wrapped in sweatpants. Unaware of his mother's physical allure until now, the son felt both regret and a sense of drawing one step closer to her.