My stepbrother sought my assistance when ill, but he exploited me as a promiscuous nurse and filled my rear with his semen

In the sanctuary of our home, my stepbrother succumbed to a debilitating illness, his feverish state compelling him to seek medical attention. As a dedicated caregiver, I assumed the role of his nurse, guiding him to the hospital for examination. However, the allure of my sister's absence set his desires ablaze. Upon returning, he manipulated the situation, ensnaring me in a web of lust and desire. With his towering phallus leading the way, he commanded me to assume the doggy style position, leaving me no choice but to surrender to his primal urges. As he took control, our bodies moved in rhythmic harmony, each thrust sending waves of pleasure coursing through us. The room echoed with our heavy breathing and the slapping of skin against skin. The climax was imminent, and with a final, powerful thrust, he released his essence into my invaded backdoor, marking the end of an unforeseen and intense encounter.