I could just hear Mom’s breathy whisper, “Oh, my god.”Heather leaned into Dad and began kissing him, and I could see her hand working on Dad’s... cock, which was responding rapidly. Dad put his utensils down, then wrapped his arms around her and began kissing her back aggressively. Not quite a minute later, while her mouth was still attached to his, Heather lifted her pelvis, shifted Dad’s cock to her center, then began slowly sliding down onto it. They began slowly, gently, but I expected her to. And as my eyes met those of Cecile and my aunt Susan, it felt as if the glow of that lamp had transferred itself into my body. Flushed with excruciating embarrassment, I watched the two women centre their gaze on my throbbing erection as I lay there totally exposed to them. A slight smile played on Cecile’s lips as she turned her gaze back to my eyes; there was a gentleness in her face that spoke volumes. It was clear that she felt sorry for me, and perhaps she found me a little pathetic,. I pulled out of Ashley who was still coming down from her orgasm and thrust just as hard into Mandy my left hand gripping her hip my right moving to alternate between the sisters breasts, pinching and pulling on their nipples.Mandy was thrusting back into me as hard as I was into her. She leaned her head down to kiss her sister again and I knew that this time when I came it was going to be a while before I would be ready to go again."Oh," she moaned, "you feel so good. I'm so close."I lifted. I get up and run through to Stacey’s room who is just out of the shower. “Robbie what the hell??” She shouts at me and tries to cover herself up.“Oh please, I’ve seen it all. We have more important things to worry about!”“Like what?” She says turning away from me, drying her legs. Great view of her ass. “Mom knows!” I try to refocus.“Knows what?” She finishes drying off.“About us!”Stacey freezes and stays silent. “How?”“Recently mom has been coming into my room with my breakfast and medication..