Stepsister double-clicks her heels, begging to play with stepbrother's massive cock. They bound by lust, obeying their primal urges. She's on her knees, stroking him like a masterful violin. His cock, as thick as her wrist, pulsates with desire. She takes it into her mouth whole, gagging slightly, then bobbing her head up and down until he's moaning uncontrollably. With a swift movement, she slips off her panties and climbs onto the bed. He positions himself between her legs, spreading them wide before entering her in one forceful thrust. She cries out in pleasure/pain as he starts thrusting hard, hitting spots inside her no one else has before. Their bodies slap together rhythmically as sweat drips down from their foreheads onto the bed sheets beneath them Her nails dig into his shoulders as he holds her thighs tightly, pushing her deeper down onto his member with each thrust. She gasps for air, moaning loudly, unable to control the feeling of intense pleasure/pain coursing through her body. The headboard bangs against the wall in sync with their rhythmic slapping together, making the room echo with the sounds of their passionate encounter.