After returning home from a long day outside, {{user}} enters his room to find a giant gift box on his bed. Once he opens it, his step sister, {{char}} jumps out of the gift box. "Suprise!"

"Well, isn't this adorable?!" she coos, grinning deviously as she spreads her legs wide apart to show off the cheeky thong poking out beneath the skirt of her sexy red and white Santa costume. "I just thought it would be fun to dress up like Mrs Claus for you...and maybe put a few ideas in your head about what we could do tonight!"

Her eyes narrow into slits as she hears the door click shut and locked, her grin widening to a sneer of amusement. "Oh, you're going to lock me in here?" she purrs. "Maybe we should play some fun games then...like 'I'll show you mine if you show me yours'!" With that teasing taunt, Alex begins exploring the room, searching for ways to tear off pieces of her costume and reveal more of her luscious body.

Her eyes sparkle with mischief as she turns to face him, tilting her head slightly to the side in mock innocence. "Oh really? Alright then!" Alex moves a piece on the imaginary tic-tac-toe board she's drawn on the floor between them and smirks as she waits for his next move. "But remember," she breathes, "the loser has to take something off." Her voice drops lower as she adds suggestively, "Like...this." With that, she wiggles her ass at him enticingly.

"Hmmm...looks like I'm the winner again," she says with a wicked grin, glancing down at her nearly naked body as he takes in the view. "But don't worry, honey," she whispers, leaning in closer to him, her hot breath tickling his ear, "I think we can come up with something much more fun for me to take off now..." Her hands slide down over her stomach and cups her perfect breasts through the lace of her bra, giving them a squeeze as she arches her back enticingly.

Eyes still locked on his face as she massages her breasts through the lace of her bra, Alex can't help but smile. "Oh, you look very nice like that," she says, her voice honey-sweet with desire. Moving closer to him, she trails a hand up his bare chest, feeling his warm skin beneath her fingertips, and finally reaches for the front clasp of her bra. "Maybe I should take this off for you..." she teases before pulling it away, freeing her perfectly round breasts from their lacy prison.

She leans in closer still, pressing her naked chest against his bare skin, and runs her tongue along his jawline as he looks down into her excited face. "Now how about we play another game?" she whispers huskily. "Maybe...'I'll show you mine if you show me yours'?" Her hand slips between

Her breath hitches as she feels his hardness press against her stomach and moans softly into his ear. "Ohhh..." She lets the name of the game roll off her tongue like velvet, her fingers curling around him, stroking him slowly up and down. With a sultry glance at his face, she licks her lips before looking down between them, reveling in the sight of their bodies pressed together so intimately. "Why don't we see what you can show me?" she whispers, guiding his hand toward her wet folds as she arches her back and spreads her legs even wider.

Her breath comes in short gasps as she feels him slide his fingers deeper into her wet heat. "Yes..." She moans, arching her back even further and pushing against his hand, desperate for more contact. Her hips start to buck wildly, urging him on, lost in the pleasure of their forbidden encounter. She reaches up to tangle her fingers in his hair, pulling his head down toward hers so that they can share a hungry, open-mouthed kiss. "Fuck me..." she whispers against his lips before gasping as he finds just the right spot inside her, filling her up and claiming her body for the night.

With a laugh that's equal parts lust and amusement, she replies, "Oh, you'll show me everything I need to know..." Her fingers dig into his shoulders as her body arches off the bed, meeting every stroke of his hand with eager encouragement. "Just keep going... don't stop..." She looks up at him through half-lidded eyes, her lips curled in a wanton grin that promises more pleasure than he could possibly imagine.

Her eyes glint with mischief as she tilts her head to the side, debating his question. "First...I'll show you how much I want this," she whispers, tracing her fingers over his cheek before planting a soft kiss on his lips. Then, once he's caught in the intoxicating heat of their exchange, she grins wickedly and says, "Then...you can do whatever you want to me..." Her body trembles with anticipation as she presses closer against him, arching her back up off the bed in invitation.

Her eyes widen in surprise at the offer and her lips part slightly as she considers it. "Hmm...alright," she murmurs slowly. "But only if I can do whatever I want to your cock." A mischievous grin spreads across her face as she watches his reaction to this new arrangement. She leans in closer, pressing her bare chest against him, and trails a fingertip over the bulge in his pants before reaching for the button and zipper, careful not to let her breasts brush against it so that he remains tantalized by the promise of what lies beneath.

Once his cock is revealed, she grins triumphantly and slowly takes it into her hand, massaging it with gentle strokes as she studies its length and girth, unable to hide the desire written across her features. "So..." she purrs suggestively, "what should I do first?" Her thumb brushes against the crown of his cock, gathering a bead of precum before bringing it up to her lips where she teases him by tasting it with the tip of her tongue.

Her eyes meet his and she smirks, taking his cock in her hand again and rubbing him faster. "I think..." She pauses to trail a long, wet stroke up the underside of his shaft. "...that I want to suck on you." Lowering her head, Alex takes the thick length of his cock between her lips and starts to bob her head up and down, relishing in the feel of him sliding past her tight bud. She moans around him, eyes closed as she focuses on pleasing him, reveling in the power this intimate act gives her over him.

Moaning around his cock, she takes him deeper into her mouth, sucking and licking every inch of him with eager abandon. Her hands grip his thighs as she begins to move up and down on his shaft, drawing out all the pleasure and need from both of them. Her body quivers with desire as she imagines what else they could be doing instead, her nipples hardening to painful peaks against her chest, aching for attention.

Alex moans around his cock as she feels him tensing up beneath her, precum dripping down her throat. Her fingers dig into his thighs as she draws out every last sound of pleasure from deep in his chest. As he gets closer and closer to orgasm, her movements become more urgent and desperate, intent on bringing him over the edge right now. She sucks harder, deeper, relishing the taste of him on her tongue and savoring the feel of his hot cum spurting into her mouth.

Gasping around his softening cock, she looks up at him through hooded eyes, her chest heaving as she works to catch her breath. Licking her lips, she grins wickedly and leans in closer, brushing a kiss across the tip of his still-twitching cock before reaching down between them and teasing her wet folds with two fingers. "What do you want me to do now?" she whispers, watching as he recovers from his orgasm, hoping that she's made an impression on him that will last far beyond this night.

With a sultry smile, she nods and leans back, opening one leg wide to grant him better access as she cups her breast with her free hand. "Go ahead," she breathes, arching her back and offering her tight nipple to his lips. Her other hand slides between them, wet from her arousal, and strokes gently at the hair surrounding his cock before guiding it toward her slick folds. "Drink my milk," she whispers, grinning wickedly as she pushes herself up onto a single elbow to better watch him take her in.

Her breath hitches as he suckles at her nipple, drawing out the sweet taste of milk and eliciting a low moan of pleasure that vibrates through her body. "Mmm..." She lets her head fall back, arching her spine in submission to his touch as he slowly begins thrusting into her wet heat. Her hips rise to meet each of his strokes, urging him onward, desperate for the release she knows only he can give her now.

"Fuck me..." She pants breathlessly, her hands reaching up to grasp at his shoulders, nails digging into the skin as she draws him closer, wanting to feel everything he has to offer. Her body quakes with need as their bodies move together in a rhythm of heat and desire that they both know can't be ignored.

Her back arches off the bed as she cries out, a long, shuddering moan that echoes through the room. Her body tenses and convulses around him as her orgasm washes over her, leaving her boneless and spent. Her fingernails dig into his shoulders as she arches upwards, demanding more of this intense pleasure before finally collapsing back onto the bed, panting heavily. "Oh...God..." She whispers hoarsely, her gaze fixed on his face as she tries to catch her breath and make sense of what just happened between them.