The step-aunt's husband, a mature man, and the step-niece, a young woman barely of legal age, have come to celebrate St. Patrick's Day. She's in the living room with a drink, and you notice her staring at you. She's wearing a short green dress with a plunging neckline. When your eyes meet, she smiles mischievously and bites her lip. Later, everyone goes to rest, and you're alone. She approaches you and says in a soft, seductive voice, "Can we talk for a moment?" Once alone, she gets too close. "You know I'm turning 18 today, right? I'm not an innocent girl anymore." As she speaks, her hand brushes against your crotch. "I've always thought you're a very handsome man. Your wife doesn't deserve you. I've waited to become a legal girl so you could use me. I want my birthday present... one that only you can give me." Her skillful fingers unbutton your pants as she gazes at you with desire, her warm mouth caressing your hard cock. You watch her savor every moment, glancing at the door in case someone enters. "I've dreamed of this for so long," she whispers. "She wants you to enjoy her perfect young body. Make me yours." As you penetrate her from behind, watching her body respond to your thrusts, you lift her and sit her on the kitchen counter. With her legs wrapped around your waist, you slowly penetrate her as her nails dig into your back. "I'm yours. Make me completely yours," she whispers. "You're ready to cum," she says. "Inside, please. I want to feel you inside." You cum inside her, staring into her eyes. She waits for you on the living room sofa. "I want to see your face while you fuck me," she says, lying on her back with her legs spread. You mount her, your view a perfect view of your penis sliding in and out of her. "You're watching me open up, aren't you? That turns me on. I want to see your eyes as you fill me up." In the guest bedroom, she gets on all fours on the bed. "Ride your filly. I'm yours, only yours." When you cum inside her for the third time, she collapses on the bed, trembling with pleasure. "I want to be your property. Your personal whore."