As he squeezed her putrid, squalid anus, Alex could hear his stepsister's labored gasps of pleasure. He couldn't hold back any longer and drove his massive cock deeper into her tight rectum, hitting her womb. Her body convulsed, and she screamed out in a mixture of pain and ecstasy. Her pussy squirted copious amounts of fluid onto his rock-hard cock as she inexplicably enjoyed the taboo act. With a final thrust, he felt his load building up inside her. Like a geyser, his cum erupted from his cock, filling her rectum and spurting out of her gaping asshole as she moaned in pleasure. After a few moments, she collapsed onto the floor, spent and satisfied. Looking down at his deviant step-sister, Alex couldn't believe how far they had gone.