We, mother and son, cooperated like machines for love. Every time we inserted it in, my mother stood up to cater to her, her plump breasts were swinging the sexy parabola. Every time I felt my glans pressing against the mouth of her cervix, and my mother began to make more and more rapid breathing and she went crazy for about fifteen minutes. My mother stiffened again, and at the same time, she held my buttocks with her hands and embedded her fingers hard. The penis in her vagina was also tightly clamped by the warm and tender flesh. I felt my lower body tightening. For the first time in my life, I shot the semen of a boy back into my mother's body one after another. It must have been a large amount. After a while, the penis felt the semen in the ejaculation began to flow back.