I also observed a dark line under her eyes, and on afterwards observing Mrs. B., saw precisely the same — so I became convinced they were unwell fro... the same cause. Mrs. B. had told me that most women were so at the full of the moon — which was then the case.The next day my mother proposed to drive to town, and probably knowing the state of the case, asked Mrs. B. and Miss Evelyn to accompany her, as she thought the airing would be beneficial. They at once accepted — my younger sister cried. Suddenly he exploded in a massive wave of hot white cum. “Oh God,” the nympho moaned as his load shot over her belly, covering her thick body and tits with a few drops hitting her red smudged lips. She eagerly licked the few beads off her lips as a second equally powerful stream shot out creaming more of her belly and tits.“Wow that’s a lot,” she said as he grunted through several smaller waves of cum. She enjoyed the feel of his hot jizz on her, as gravity took hold and it began running down. Cum with me Mark."I tried hard to thrust myself into Danni's convulsing pussy. I wanted her to know that she was about to receive my sperm. I gasped, cried out, and my orgasm struck. Danni sensed it and pushed herself harder onto me. My sperm spewed into her with a force I cannot remember experiencing. We were spent from the sex and Danni fell against my chest again panting.The full weight of our i****t struck me; Danni could no longer be my younger sister. I could no longer be her big brother.. “I love you,” she said as I buried my nose in her hair.“I love you too,” I said as I inhaled. Her hair smelled like smoke. “Have you been smoking?”After a moment she said, “No silly, I went to lunch with Madeline and she smokes like a chimney.”Before I could say anything else, she grabbed my hand and pulled me toward the stairs. “Come on Bradley; I want you to fuck me.”“Such language young lady,” I said as I let her pull me along.Upstairs in our bedroom I watched while she stripped off her tank.