He came unannounced into my office and locked the door behind him. Startled, I looked up from my desk as he approached, looking serious and with purpose. I came around to meet him. He pulled me into him and kissed me. I pulled my head away and said, "Why are you here in the middle of my work day? It's highly inappropriate for you to be here." "I couldn't wait," he replied as he cupped the back of my head with his hand to resume our kiss. Shaking off my annoyance at him, I leaned in and wrapped my arms around his neck. His mouth was hot and hungry against mine. He moved his body in close and rubbed himself against me. I felt his rock hard erection through the layers of our clothing. Feeling his arousal caused my body to respond in kind. My belly clenched and a shiver of anticipation rippled through me as he lowered the zipper of my skirt. With a little wiggle from me it fell to the floor. I quickly pulled off my blouse. He took care of my bra and panties. He reached for me, but I shook my head and pointed to his clothing. As he quickly shed them, I pushed the things on my desk aside and sat my bum on the edge facing him and spread my legs. He took about ten seconds to look me over, concentrating his stare on my breasts and between my legs. His eyes widened and his jaw tightened as he absorbed the wanton display of my naked body. Then he quickly moved between my legs and gathering me into his arms. His mouth found mine and he pushed his tongue inside, kissing me deeply with our tongues entwined and our mouths gently sucking. I felt my womanly center swell and moisten. He slid his fingers knowingly along my groove, which released a flood of wetness. Finding me ready, he plunged two fingers inside. My hips jerked and I pulled him closer. As he fingered me, my belly quivered and my legs shook. When I moaned into his ear that I wanted him, he replaced his fingers with the head of his hard cock, then shoved it deep inside. My head snapped back with the force of it and I expelled a sudden gasp of surprise. He filled me all the way, igniting nerve endings as his cock moved all the way in. My pussy clenched around his cock as he began thrusting, tightening around him and nipping it. I wrapped my legs around his hips and pulled him into me each time he thrust inside. He continued to kiss me as we fucked, our tongues pressing and sliding against each other. He held me to him with one hand behind my upper back and placed the other on my right breast, cupping it roughly and rubbing the aching nipple between his finger tips. After only a minute or so of thrusting inside me, he moved his hand from my breast downward and slipped it between us, rubbing his thumb over my clit, flicking it back an forth. It was too much and my hips jerked in time with the movement of his thumb. He knew exactly how hard and how fast to move it against my clit, and I felt my climax building fast. Heat radiated from my core as his cock sped up. I sensed the urgency of his thrusting and felt him rapidly getting close to his release. Knowing my body had this effect on him was exhilarating and enhanced my own arousal. He soon started pounding into me and my own climax suddenly claimed me. Every part of me shuddered and my lungs sucked in air that was released in cries of pleasure that were muffled by his mouth on mine. As the waves or orgasm rolled over me, he grunted several times as he came, spurting deep inside me. I felt his warm liquid splash inside, which extended my pleasure as we climaxed together, our hips jerking in unison. Our cries of release soon subsided - his into silence and mine into low moans of completion. After a few minutes of cuddling with his semi-hard cock still slowly moving in me, we reluctantly parted. With him still standing between my legs, we used the tissues from the box on my desk to clean up, then quickly got dressed. Only then did I think about the level of noise we had made and hoped no one heard. He gave me one last kiss, a deep one that made me quiver and think that maybe we should do each other one more time. Sanity prevailed and he hurriedly departed. My long time secretary, a married woman in her fifties who usually had that certain twinkle in her eye most mornings when she arrived for work came in after a few minutes with some papers for me. As she placed them on my desk, she caught my eye and with that twinkle in her eye and a knowing smile said, "I wish my husband would visit me during the work day, but I guess you wouldn't lend us your office. Don't worry, I don't think you could be heard beyond my work area." We had become close over the years and I laughed as she turned with a grin on her face and left.