The office was quiet, too quiet for a Friday afternoon. I could hear the faint hum of the air conditioning, and the occasional rustle of papers from the cubicle next to mine. It was one of those days where time seemed to stretch out, each second dragging on like an eternity. I was lost in thought, staring at the screen, when the door to my office creaked open.

"Hey, can I come in?" Sarah's voice was soft, almost hesitant. She stood in the doorway, her dark hair falling over her shoulders, her eyes darting around as if she were looking for something—or someone.

"Sure," I replied, trying to keep my voice steady. I knew Sarah well enough; we had worked together for years, but there was always something about her that made me uneasy. Maybe it was the way her lips curved into a sly smile whenever she caught me off guard, or the way her fingers would brush against mine when she handed me a file. Whatever it was, it made my heart race every time she was near.

She stepped inside, closing the door behind her with a soft click. "I need your help with something," she said, her voice barely above a whisper. "It's... confidential."

I raised an eyebrow, leaning back in my chair. "Confidential? What do you mean?"

Sarah took a deep breath, her chest rising and falling visibly. "There's this project," she began, her eyes locking onto mine. "A special project. And I need your expertise. But... it has to stay between us."

My curiosity was piqued. "What kind of project?"

She hesitated, then stepped closer, her perfume filling the small space between us. "It's... tantric," she whispered, her voice trembling slightly. "And it involves another person."

My mind raced. Tantric? Another person? My thoughts were interrupted by the sound of footsteps outside my office. The door opened again, and there he was—Mark, our new intern. He looked flustered, his tie slightly askew, his eyes wide with anticipation.

"Sorry to interrupt," he said, his voice shaky. "But Sarah asked me to join you both."

I glanced between them, my heart pounding in my chest. This was getting more complicated by the second. "Join us? For what?"

Sarah smiled, a slow, seductive curve of her lips. "For the project," she said, her voice dripping with meaning. "The tantric project."

Mark stepped inside, closing the door behind him. He looked nervous, but there was a spark in his eyes that told me he was eager for whatever was about to happen. "I hope you don't mind," he said, his gaze shifting between Sarah and me. "But I think this is going to be... interesting."

I swallowed hard, my mouth suddenly dry. "Interesting" was an understatement. The air in the room felt thick, charged with tension and something else—something primal. I could feel it in the way Sarah's eyes lingered on me, in the way Mark's breathing quickened as he stood beside her.

"So," I said, trying to keep my voice steady. "What exactly are we doing?"

Sarah leaned in closer, her breath warm against my ear. "We're going to explore," she whispered. "Together."

Mark nodded, his eyes never leaving mine. "Together," he echoed, his voice filled with promise.

The office around us seemed to fade away, the world outside disappearing as the three of us stood there, locked in a moment that was both thrilling and terrifying. I could feel the heat between us, the undeniable pull that drew us together. There was no turning back now.

"Alright," I said, my voice barely audible. "Let's explore."

The room seemed to shrink as the three of us stood there, the air thick with anticipation. Sarah's hand slipped into mine, her fingers intertwining with mine in a way that sent shivers down my spine. Mark stepped closer, his presence both intimidating and exhilarating. I could feel the heat radiating from him, a palpable energy that made my skin tingle.

"Where do we start?" Mark asked, his voice low and husky. His eyes flicked between Sarah and me, filled with a mixture of curiosity and desire.

Sarah's lips curved into a slow smile. "Let's begin with touch," she suggested, her voice soft and inviting. She released my hand and reached out to Mark, her fingertips brushing against his chest. He inhaled sharply, his muscles tensing under her light caress.

I watched, mesmerized, as she moved her hand lower, tracing the outline of his abs through his shirt. Mark's breath hitched, and he closed his eyes for a moment, savoring the sensation. When he opened them again, they were dark with need.

"Your turn," Sarah said, glancing at me. Her eyes sparkled with mischief, daring me to join in.

Taking a deep breath, I stepped forward, my hands trembling slightly as I placed them on Mark's shoulders. His skin was warm beneath my palms, and I could feel the steady beat of his heart. I let my fingers trail down his arms, feeling the strength in his muscles, before moving back up to his neck.

Mark groaned softly, his head tilting back as he surrendered to our touches. "God, this feels incredible," he murmured, his voice rough with desire.

Sarah's hands moved to his waist, her fingers deftly unbuttoning his shirt. She pulled it open, revealing his toned chest. My mouth went dry as I took in the sight of him, every inch of his skin begging to be explored.

"Lie down," Sarah instructed, her voice firm yet gentle. Mark obeyed without hesitation, stretching out on the floor, his eyes never leaving ours.

I knelt beside him, my hands hovering over his body, unsure of where to start. Sarah caught my eye and nodded encouragingly. "Take your time," she whispered, her own hands gliding over Mark's chest, teasing his nipples with delicate strokes.

Taking a deep breath, I followed her lead, my fingers tracing the contours of his torso. I could feel the tension in his muscles, the way he held himself still, waiting for our next move. My touch grew bolder, my fingers dipping lower, exploring the ridges of his abdomen.

Mark's breath quickened, his hands clenching into fists at his sides. "Please," he begged, his voice strained. "Don't stop."

Sarah's lips brushed against my ear, sending a jolt of electricity through me. "Join me," she whispered, her hand guiding mine to Mark's erection, pressing against his jeans.

My heart pounded in my chest as I felt the hardness beneath the fabric. I glanced at Sarah, seeking her approval, and she smiled, nodding. "Go ahead," she urged.

With trembling hands, I unzipped Mark's pants, freeing his throbbing length. It sprang free, hard and eager, and I swallowed hard, my throat dry. Sarah's hand covered mine, guiding my fingers around his shaft, showing me how to stroke him slowly, firmly.

Mark's hips bucked involuntarily, his breath coming in ragged gasps. "Fuck, yes," he groaned, his eyes half-lidded with pleasure.

I matched Sarah's rhythm, our hands working in tandem, drawing him closer to the edge. The sound of our breathing filled the room, mingling with Mark's groans of pleasure. I could feel the heat between us, the intensity of the moment building with each passing second.

Sarah leaned down, her lips brushing against Mark's ear. "Are you ready for more?" she asked, her voice dripping with seduction.

Mark nodded, his eyes wild with need. "Anything," he panted.

Sarah's gaze met mine, and I knew what she wanted. Taking a deep breath, I positioned myself above Mark, my legs straddling his hips. I could feel the weight of his erection pressing against my core, and I shuddered, overwhelmed by the sensations coursing through me.

Sarah guided me, her hands on my hips, helping me lower myself onto Mark's shaft. The intrusion was intense, stretching me wide, but there was no pain, only pleasure. I gasped, my nails digging into Mark's shoulders as I adjusted to his size.

Mark's hands gripped my hips, steadying me as I began to move, riding him with slow, deliberate thrusts. Sarah's hands roamed over my body, her touch igniting flames wherever she touched. I could feel her lips on my neck, her tongue tracing patterns on my skin, driving me wild.

The room spun around me, the world narrowing to the three of us, locked in this intimate dance. I could feel Mark's orgasm building, his thrusts growing more urgent, his grip on my hips tighter. Sarah's fingers found my clit, circling it with expert precision, pushing me closer to the edge.

"Come for me," she whispered in my ear, her voice a sultry command. "Show him how much you want him."

I cried out, my body arching as wave after wave of ecstasy crashed over me. Mark's release followed moments later, his body shuddering as he spilled inside me, filling me completely.

We collapsed together, our breaths mingling, our bodies still entwined. The office seemed to hum with our shared energy, the air thick with the scent of our passion. There was no turning back now. We had crossed a line, and there was no going back to the way things were before.

But for now, we were content to simply exist in this moment, lost in the throes of our desires, bound together by the fire that burned between us.