Birthday Surprise For Daddy

The house was supposed to be empty. That was the only thought running through Marcus's mind as he stepped through the front door three hours earlier than expected, his business suit jacket slung over one shoulder, the August heat clinging to his skin. The conference had wrapped up faster than anticipated, and rather than suffer through another night of hotel pillows and overpriced room service, he'd caught the last flight home to Phoenix.

"Rachel? You here?" he called out, dropping his keys into the ceramic bowl by the entrance. The house remained silent, save for the hum of the air conditioning unit working overtime against the desert heat.

His stepdaughter Rachel was supposed to be at her summer internship until six, and his wife—Rachel's mother—was on a two-week cruise with her sister. For the first time in months, Marcus had the sprawling suburban home to himself.

He loosened his tie as he climbed the stairs, his dress shoes clicking against the hardwood. At forty-two, Marcus kept himself in shape—early morning runs, weights in the garage, the discipline of a man who'd built his own construction firm from nothing. The gray at his temples only seemed to enhance his rugged appeal, or so his wife often told him. But lately, their marriage had settled into a comfortable roommate phase, the passion cooled to embers.

He reached the master bedroom, eager for a shower and perhaps an evening of uninterrupted sports on the living room television. That's when he heard it—a soft, rhythmic sound drifting from down the hallway. Not from the master suite, but from Rachel's room.

Marcus paused, his hand on his own doorknob. The sound came again—faint, breathy, unmistakably feminine. A moan, barely contained, followed by the wet slap of skin against skin.

She's masturbating, he realized with a jolt of inappropriate awareness. Rachel was twenty-one, home from college for the summer, a young woman in every sense of the word. But she'd always been "his kid"—the girl he'd helped raise since she was thirteen when he'd married her mother. The idea of her as a sexual being felt simultaneously obvious and forbidden.

He should walk away. He knew he should. Every instinct told him to retreat downstairs, make noise, give her privacy to finish whatever she was doing in the sanctuary of her bedroom.

Instead, Marcus found himself moving silently down the hall, drawn by a force he couldn't name. The door was cracked open—just an inch, just enough. He told himself he was checking to make sure she was okay, that the sounds weren't of distress. It was a lie, and he knew it even as he positioned himself to peer through the gap.

What he saw stole his breath entirely.

Rachel lay sprawled across her bed, her college textbooks forgotten on the floor where they'd been tossed. She was completely naked, her body bathed in the golden afternoon sunlight streaming through her window. At twenty-one, she'd grown into a woman that turned heads everywhere she went—curves that her bikini could barely contain at the pool, legs that seemed to stretch for miles, full breasts with rose-hued nipples now peaked and hard.

But it wasn't just her nudity that made Marcus's mouth go dry. It was what she was doing, and what she was looking at.

Her slender fingers worked furiously between her spread thighs, her pussy glistening with arousal, shaved smooth except for a neat landing strip of dark hair. Her other hand squeezed her breast, pinching her nipple with desperate intensity. And on her laptop screen, paused on a video, was an image that made Marcus's blood run cold and hot simultaneously.

It was him. From last month. The family pool party where he'd worn those damned swim trunks, the ones that had been too tight after years in storage. The video was clearly shot on a phone, zoomed in on him climbing out of the water, the wet fabric clinging to his groin, outlining the substantial bulge of his cock in explicit detail.

"Fuck, Daddy," Rachel whimpered, her fingers circling her clit faster. "Fuck, you're so big. I want it. I want your thick stepdad cock inside me."

Marcus's hand flew to his own groin, his cock already hardening with shocking speed. She's fantasizing about me, he thought, the taboo nature of it making his arousal spike impossibly higher. My stepdaughter. My little girl. Touching herself to thoughts of me.

He should leave. He had to leave. But his feet remained rooted to the floor, his eyes glued to the erotic tableau before him.

Rachel's hips bucked upward, her wet pussy seeking more contact, more friction. She reached for something beside her on the bed—a massive dildo, thick and veined, at least eight inches of flesh-colored silicone. Marcus watched, mesmerized, as she dragged the toy through her folds, coating it in her arousal before positioning it at her entrance.

"Give it to me, Daddy," she begged the empty room, her voice thick with need. "Stretch my tight college girl pussy with your big daddy dick. I've been such a bad stepdaughter, thinking about you every night. Punish me. Make me yours."

The dildo pushed inside her, and Rachel's back arched off the bed, her breasts thrust upward, her mouth falling open in a silent scream of pleasure. Marcus could see her pussy lips stretching around the girth, could see how wet she was, how ready. His own cock was fully erect now, straining painfully against his dress pants, a wet spot forming where pre-cum leaked from the tip.

He unzipped before he could stop himself, his hand wrapping around his thick shaft. He was large—eight and a half inches of heavy, veined masculinity that had always been a point of pride. Now he stroked himself slowly, watching his stepdaughter fuck herself with a toy while she imagined it was him, while she called him Daddy in that breathy, desperate voice.

"Harder," Rachel gasped, working the dildo in and out of her slick channel. "Fuck me harder, Daddy. I want to feel you everywhere. I want your cum filling my unprotected pussy. Breed your stepdaughter, Daddy. Make me your little fucktoy."

Marcus's grip tightened, his strokes becoming more urgent. The words were so wrong, so filthy, so absolutely forbidden—and yet they drove him wild with lust. He'd never thought of Rachel this way, had never allowed himself to notice the way her tank tops stretched across her chest or how her sleep shorts rode up her ass in the mornings. But now, seeing her like this, hearing her darkest fantasies spill from her lips, he couldn't unsee it. He couldn't un-want it.

Rachel's pace quickened, her hips meeting each thrust of the dildo. Her free hand moved to her clit, rubbing tight, desperate circles. "I'm close, Daddy. I'm going to cum thinking about your cock. Can I cum? Please let me cum all over your big dick."

"Yes," Marcus groaned, the word escaping before he could stop it.

Rachel's eyes snapped open, her head whipping toward the door. For a moment, time froze—her fingers still buried inside her, her pussy spread and glistening, her shocked gaze meeting his through the crack in the door.

Marcus expected screaming. Expected accusations, tears, demands that he leave, that he never speak of this, that her mother hear every sordid detail.

Instead, Rachel's shocked expression slowly transformed into something else entirely. Her lips curved into a seductive smile, her eyes heavy-lidded with arousal that hadn't dimmed despite the discovery. She didn't cover herself. She didn't pull away. She held his gaze and deliberately pushed the dildo deeper, her breath catching as it filled her completely.

"How long have you been watching, Daddy?" she asked, her voice a purr that vibrated through his entire body.

Marcus pushed the door open fully, no point in hiding now. His cock hung heavy in his hand, still slick with his own arousal, impossible to deny. "Long enough to know you've been a very bad girl," he said, his voice rough with the effort of restraint.

Rachel sat up slowly, the dildo sliding free from her pussy with a wet sound that made Marcus's cock twitch. She was glorious in her nakedness—confident, unashamed, every inch a woman who knew what she wanted. "Bad girls need to be punished, don't they?" she asked, crawling to the edge of the bed, her breasts swaying with the movement. "Isn't that what you always tell me?"

"Rachel," Marcus warned, but his feet carried him closer, until he stood at the foot of her bed, his erection pointing toward her like a compass needle finding north. "We can't. Your mother—"

"Is on a cruise," Rachel finished, rising to her knees on the mattress. She was eye-level with his cock now, her breath hot against the sensitive skin. "And I've wanted this since I was eighteen. Since I first saw you step out of the shower with that towel barely hanging on. Since I started touching myself to thoughts of you taking me, claiming me, making me yours in every filthy way."

Her hand replaced his on his shaft, her delicate fingers unable to fully close around his girth. Marcus groaned, his head falling back, his resistance crumbling with each stroke of her soft palm.

"You're my stepfather," he managed, even as his hips thrust involuntarily into her grip. "I raised you. Changed your passwords when you got hacked. Taught you to drive."

"And now you can teach me other things," Rachel whispered, her tongue darting out to taste the bead of pre-cum at his tip. "Teach me how to take this big cock, Daddy. Teach me how to be your perfect little cumslut."

The last of Marcus's control snapped. His hand tangled in her hair—not roughly, but with firm possession—and he pulled her face closer to his groin. "Is this what you want? You want your stepdad's cock in your mouth? You want to know what it's like to be fucked by the man who raised you?"

"Yes," Rachel moaned, her lips parting eagerly. "Please, Daddy. I've practiced so much for this. Let me show you."

She took him into her mouth, and Marcus saw stars. The wet heat of her tongue, the gentle suction, the way she hollowed her cheeks to take more of his length—it was exquisite torture. Rachel was enthusiastic if not experienced, her eagerness making up for any lack of technique. She moaned around his shaft, the vibrations traveling through his entire body, her eyes watering as she tried to take him deeper.

"That's it, baby girl," Marcus groaned, his hips beginning to thrust gently. "Take Daddy's cock. Show me how much you want it."

Rachel pulled back, gasping, strings of saliva connecting her lips to his throbbing erection. "I want it everywhere," she breathed, her hand working his shaft. "I want you to fuck my face, my pussy, my ass. I want to be your dirty little secret, your favorite hole to use whenever Mom's not around."

"Christ, Rachel," Marcus growled, the filthy words spiking his arousal to painful heights. "You're going to be the death of me."

"Then die happy, Daddy," she laughed, before taking him deep again, her nose pressing against his abdomen as she swallowed around his tip.

Marcus couldn't take anymore. He pulled her off his cock, loving the disappointed whimper she made, and pushed her back onto the bed. "Spread your legs," he commanded, his voice leaving no room for disobedience. "Show me that tight college pussy you've been training for me."

Rachel complied instantly, her legs falling open to reveal her glistening sex, pink and swollen and absolutely perfect. The dildo had stretched her slightly, but he knew he'd be bigger, that he'd fill her in ways she'd never experienced.

"Touch yourself," Marcus ordered, stripping off his shirt, then his pants, until he stood completely naked before her. His body was hard and scarred in places, a man's body, experienced and strong. "Show me how you get yourself off thinking about me."