That day was the first time I have ever seen him cry. "Dad, have you ever really looked at Robert ... MY SON?" he asked. The tone of his voice was so ...arcastic that it seemed as if each syllable was dipped in acid."Look at my daughters, Rob," said my dad softly."I did," said Robert. "You guys are all from Irish genetic stock. Lindsey has black hair, like yours. Mary has brown hair, which is probably a combination of your black hair and Mom's light blonde. I don't know how to explain Katie's. What were they planning? Then I heard it, what was that? Were theykissing? I was sure of it, his voice, but a murmur, the sounds ofkissing interspersed with Mum's soft noises.Who was this man? It wasn't my sister's father he had long gone and myown father, he'd never come back. I was confused, troubled and mysituation only furthered my worry and discomfort.I turned to face the wall beside my bed, what was happening? They weremoving about, his voice prevalent, mum's softer giggly, then I heard. My cock almost jumped with joy and she saw the bulge. She told me to come inside the bedroom and then asked if I can satisfy her. I agreed. She asked me to undress her. I removed the zip of the nightie and pulled it above her head. Her breasts were big, but was sagging. I removed the bra that held those melons and both of them were free. There wasn’t much wrinkles but it sagged, I kneaded them slowly and the nipples were getting erect. I sucked them and also kneaded the other, granny was. Shelly was all smiles as we all got naked and got on her bed. Megan said: “I like guy and girls both.” With that she started feeling Shelly and I both up. I and Shelly both gladly joined in.There is was. A hard dick on a girl. She said: “Your welcome to feel it and my pussy too.” Both Shelly and I started in feeling her pussy and dick. It was real. She in turn began to feel Shelly and I. She was turned with her pussy and dick to our heads and she began to stroke my rock hard dick and suck on.