My sister permits anal play while reading novels, resulting in anal flipping

In a room filled with eroticism, my sister, a sultry Peruvian cougar, reclines on the couch, immersed in a steamy romance novel. Unbeknownst to her, her lover and I share an intimate moment on a different couch. As he pleasures her, I find myself unable to resist the allure of her luscious ass. With a nod from her, I take control, bending her over the couch, her voluptuous ass exposed for my eager attention. As a seasoned amateur, I waste no time in exploring her depths, her moans echoing through the room. Meanwhile, her lover continues his passionate pursuit, oblivious to the anal flipping unfolding behind him. The sight of his wife being taken from behind only fuels his desire, driving him to ravage her even harder. This is a tale of forbidden pleasure, where boundaries blur and carnal desires take precedence.