Bored and horny, Scarlett, my curvy step-sister, accidentally walks in on me masturbating to her sexy photos. Instead of getting mad, she decides to join in, kneeling down to take my throbbing cock into her mouth. She sucks me off, her big tits bouncing as she works my shaft. I can't help but grab her huge ass, spreading her cheeks to reveal her tight, wet pussy. She climbs onto my lap, riding me hard in reverse cowgirl, her massive ass bouncing up and down. I finger her asshole, lubing it up before sliding my cock inside, giving her the anal she never knew she wanted.