Anal sex in doubt with my beautiful sister.

They had agreed that they would do it that Saturday, he was anxious because for the first time she would give him her ass, her big ass would finally be penetrated by him, his balls would crash into her and he could unload in her. When the day came, he bit his lips at the sight of her wearing those tight, shiny pants. He was in need of her and he wanted her now. So when she bent down to take off her clothes he wasn't surprised by her skimpy underwear. What surprised and amazed him was that tattoo, a small blue butterfly framing her hole, ready to be destroyed.