We made a date to get together that evening after chow. After chow, I went to her lodging area and found her , we decided to check out the "entertainm...nt" area and see what was playing on the movie, it was dark and the movie was some PG Rated adventure tale, we sat in the back and kissed and caressed, I slide my hand up her blouse and t-shirt and found she did not wear a bra this night, I caressed her soft tit flesh and nipples feeling them get stiff with arousal, she squirmed in her seat and. She stood up, stripped down to her pink thong, and looked at me as if she had never done that before. I helped her into the different pieces of underwear. We laughed as she made funny poses. I took my phone out and took some pictures, and she laughed. Then she put on a black one. It was all black except for a tiny red bow between her breasts and below her navel. The top was like a tank top, but with the midriff cut open to show her smooth stomach. It stopped at her waist to show her black lace. Apparently Debby found this family moment the three of us were sharing very arousing too, as she was looking at us and frenetically masturbating at the same time.My mother adjusted her position slightly so that she now rested on one arm and had a hand free to stroke my dad’s cock while sucking it. Her skilled administrations had my father’s huge prick fully erect again surprisingly quickly.After some time, my mother let my dad’s prick slide from her mouth. “Take it out, Joey,” she told me.. She obeyed by going over to the chair, placing her hands on the cushion, and sticking her underwear-covered ass out and up, her legs straight. Even in her pained, humiliated state, she had discipline."Panties off," said her daddy. "And get down to your knees."She knew it was useless to resist. She'd already been made to basically dry hump her own brother and expose her breasts to him. How could she say no now? She pulled her panties off and dropped down to her knees, with her elbows continuing.