After years of teasing, M's younger sister finally gives in to her desires. She bends over, presenting her round, untouched ass, as M lubes up his throbbing cock. Gently, he pushes the head against her tight hole, feeling her tense. With a deep breath, she relaxes, allowing him to slide in, inch by inch. M grips her hips, slowly picking up the pace, slapping against her ass as she moans. She reaches back, spreading her cheeks, urging him deeper. His thick cock fills her, stretching her tight hole as they fuck, their bodies slapping together. He reaches around, rubbing her clit, bringing her to the edge as he pounds her ass.