I shook his shoulder to wake him up. His eyes opened, and he looked confused for a second, then smiled. “Good morning, Mom. I must have fallen aslee....”“We both fell asleep. You better get up now. I have to fix something for breakfast and get ready for work.” I could not help but tease. “You don’t want anyone to find out you still sleep with your mommy.”He kissed me on the cheek as he started to get up. “Don’t tell Laura. She will get jealous.”I took a swipe at his arm as he got up but missed.. When they got back they went into the bathroom, mom and her showered together and they were in there for a long time.When they came back out Christy was in a small pair of shorts and a t shirt, mom was in a robe only.Mom says so, ready honey to become a woman and Christy smiles a huge smile saying yes mommy, I’m really ready.Mom bends down and shows her dad’s cock, he’s laying back in his chair with his hips forward a lot.I’m sitting on the couch watching as mom takes his cock and sucks on it. Sarah started to scream. The motion of my hard deliberate fucking, and her pushing her arse off the bed, caused my cock to hit her g-spot every now and then. She was exploding with her first orgasm within a few strokes of my cock being inside her. But then, she was as horny as fuck.She pushed upwards and I could see her close her eyes and her face become contorted. I thought of stopping, but that would have been so cruel. Besides, I couldn’t stop right now - I loved seeing the look on her face. He also drew pleasure from knowing what it felt like both for his father and his sister. As his cock slipped out of his twin's booty, he took some satisfaction from seeing his cum ooze from her sphincter. Then he felt something else entirely: his father came inside his bowels.Karl and Kirsten both smiled as they realized what happened. Then he started cleaning out his own spunk from his sister's butt. She soon returned the favor, tasting their father's cum straight from her brother's asshole..