... Neither Shelly nor Margaret said a word. They waited for their Master's next command like the good little slaves they had become.
The wait was not a long one.
"How about you, Mommy Dearest?" he sneered. "Think you can eat pussy as well as her?"
"Yes, Master," Margaret replied in a subdued tone. She was too terrified of the consequences to object.
He ordered Shelly to straddle her mother's face, sending a quick jolt through Margaret when Shelly didn't move fast enough to suit him. As Shelly knelt with a knee on either side of her mother's head, she looked down into her grief-stricken eyes. Then, closing her own eyes, she lowered her pussy down to her mother's waiting lips. Her mother's tongue expertly licked up and down her slit, teasing the lips apart and thrusting deep inside her daughter.
Shelly gasped as she felt her mother's tongue enter her. The sensation was unlike anything she'd ever felt before. Margaret used her nose to tease her daughter's tiny clit out of hiding and sucked it into her mouth. She briskly rubbed her tongue back and forth on the sensitive little nub and felt Shelly shudder violently in response. Shifting her position slightly, Margaret again slipped her tongue into Shelly's pussy.
Shelly, at the captor's urging, began rocking gently back and forth across her mother's face. Each stroke caused her clit to rub against her mother's nose. The friction quickly drove her over the edge. Crying out in shame and pleasure, Shelly came, her juices flowing into her mother's waiting mouth. Margaret eagerly lapped up the cum, swallowing all she could coax into her mouth.
Shelly slid off of her mother and coiled herself into as tight a ball as possible. She struggled to come to terms with all that had befallen her since waking in this tiny cinderblock room such a short time ago. Their captor left her little time to recover, however.
"Margaret, turn over on your stomach. Let's see that perfect ass of yours stuck up in the air."
With the stocks still holding her knees apart, turning over was not as easy a task as it sounded. Margaret finally struggled her way into position and waited for the inevitable. She heard her Master rummaging around in the cardboard box again and closed her eyes.
The Master tossed a large strap-on dildo onto the floor next to Shelly, who looked at it curiously. At the Master's command, she picked the device up and strapped it around her waist without a word of complaint. Somewhere in her mind, a voice screamed for her to stop, to fight back. But that voice was drowned out by her fear of the shock collar and of rousing the Master's anger again.