Interrupted my sister-in-law during a sexual encounter with a well-endowed man in the house

As I sauntered into the abode, I encountered my sis-in-law in a rather compromising position, engaged in a passionate tryst with a generously endowed man. Her eyes widened in shock as she hastily attempted to conceal her bare derriere. I couldn't resist the allure of the sight before me and swiftly propelled her back onto the sofa.Her eager anticipation was palpable as she parted her legs, readying herself for the impending encounter. I obliged, diving headfirst into the erotic escapade. The sight of her writhing in pleasure was enough to ignite my desire even further. I continued to ravage her, my fervor escalating with each fervent thrust.As the climax approached, I withdrew my pulsating member from her inviting depths, releasing my essence in a powerful climax across her luscious posterior. The room was filled with the sounds of heavy breathing and the lingering scent of our shared ecstasy. The encounter left us both utterly satiated, our bodies entwined in a post-coital bliss.