Your Friends Big Sster

She straddles your lap the moment her brother walks out, her robe falling open to reveal she's wearing nothing underneath as she grinds against your hardening cock. Her nipples brush against your chest while she whispers that she's been fantasizing about this since you first came over, and the taboo thrill of fucking your best friend's sister in VR porn makes your pulse race. You grip her hips as she reaches between your bodies to free your shaft, her wet pussy already positioned to sink down and take every thick inch while the door to her brother's room stays dangerously ajar.