He looked up from the bed, sweaty with anticipation, as the bathroom door creaked open. Her figure was outlined in the darkness by the bathroom light from the open door.
"God, Mom."
"Like it?" she said with a bemused smile.
"Yeah.. but I thought you were ..."
"Getting undressed?" She was standing over him now. Her heavy breasts were barely contained by her lacy underwire brassiere but it was the white, spandex girdle further down his mother's soft curves that held him in thrall.
"Do you want me to take it off?"
"No ...ooo". His mouth felt like it was full of cotton.
"I didn't think so," said as she leaned over him.
"How did you know...?" he said as his hand found the smoothness of nylon at the back of her thigh.
"Oh, mom's have a way of knowing these things." she placed her hand on top of his and guided it upwards. "I had to wash that old one in the back of my lingerie drawer every week..." His finger felt the bottom edge of his mother's girdle.
"...even though I never wore it." she continued. "Those stains were hard to get out." He felt a hot flush of shame but she continued to guide his hand along the swelling curves of her spandex-encased butt.
He exhaled sharply as she climbed ontop of him. He squeezed a buttock in each hand, savoring the exquisite feel of his mom's soft ass under the girdle.
"Oh..." But his cry was muffled as she planted her mouth on his. Their tongues met and darted playfully.
He grasped handfuls of his mother's plump ass through the cool elastic of her girdle. He kneaded her butt. He needed her butt.
His cock throbbed against her crotch. He could feel the moistness at the head as it pressed against the girdle, and felt alarmed at the building pressure.
In a panic his hands moved upward and found the elastic waistband at the back of her girdle. He pulled downward but the waistband won't budge. He pulled again.