Maria's backdoor initiation continues as she finds herself bent over the bed, her brother lubing up her virgin ass with eager fingers. He replaces them with his thick cock, pushing slowly but firmly until her tight ring yields, taking him inch by inch. Maria gasps, feeling a mix of pain and pleasure as he begins to move. She claws at the sheets, her body tensing as he picks up speed, slapping against her ass. She cries out, her orgasm crashing over her, her ass clenching around his cock. He follows suit, pulling out to spill his hot load onto her back, marking her as his.