Shortly after my stepmother remarried, I accidentally caught her masturbating when she was still only 40 and in the prime of her sexuality. Jokingly, I said, "You must be feeling unsatisfied," approached her, kissed her on the spot, and began fondling her large breasts. While she kept saying "No, no," she gradually grew aroused by my touch, her pussy dripping with lubrication. She sucked my rock-hard cock, and when I entered her, she cried out, "It's big, so big," writhing and climaxing repeatedly, completely overwhelmed by intense pleasure.