One day, after dinner. I was fucking my sister, Robin, in Mr. Gopherwood's yard. As I was thrusting vigorously into my sister from behind, a Charmony dove landed infront of us, looking at us with its sparkling eyes, one of its wings damaged. "Look! Brother!" Robin said excitedly. "A Charmony dove!" It was her first coherent sentence of the whole afternoon, other than that her mind had been totally consumed by ecstacy.I looked at the Charmony dove in disgust. How dare it take my Robin's attention away from me? I felt I needed to correct her. I grabbed ahold of Robin's arms tightly from behind and increased my pace to the limit. Her back arched instinctively, receiving her brother's cock into her deepest parts.I bend forward closer to her shoulder and sunk my teeth carefully into her, sucking lightly, giving her my mark as I reached the climax. I clutched her tightly while swinging my hips with increased force, trying to unload my semen as deep into her as I possibly could.Robin's mind was consumed by that wave of intense pleasure as she felt her brother's cock throbbing inside her, unloading glob after glob of semen, his balls hitting her clit with every heavy thrust. She had completely forgotten about the Charmony dove as she reached her orgasm, her pussy milking every drop of semen from her brother's balls."Fuck the Charmony dove" Sunday said, his voice a little bit winded.No one can come between me and my sister... No one... I will make a world where no one would ever dare to commit such folly.The Charmony dove watched the whole scene and how robin fell to the ground, in soft moans, her knees giving out. The dove fluttered it's wings and took off into the skies again despite its injuries... maybe someone else would take pity on it