The office Christmas party was scheduled to start in an hour. I had no intention to attend, having experienced the past three years' versions at my work. Mundane chatter, mostly just about work topics, as well as all the fake holiday cheer. It was not something I wanted to endure again.

I looked up as my boss walked into my office with a determined look on his face.

"Leslie, I have a big favor to ask of you. I invited one of our most important clients to the party tonight, but something urgent has come up and I cannot attend. Would you please make him feel welcome?"

"I don't know, Carl; I was not planning on attending the party tonight. My husband and kids are expecting me at home."

"You would be doing me a big favor. I really need to ensure we make a positive impression on Mr. Williams. I just need you to show him around quickly, maybe get him a drink, and answer any questions he might have."

I knew I was backed into a corner and would have to agree. After all, I was Carl's executive assistant, and these types of tasks normally fell to me.

"OK, Carl, I will stay and make sure Mr. Williams has a positive impression of our firm."

"Thank you, Leslie; this means a lot to me and to our company."

With that he turned and left, leaving me shocked at how my plans for not attending the party had so quickly changed. I called my husband and let him know that something had come up and that I was stuck attending the party after all. He was very supportive and let me know he would take care of dinner for the kids. With that done, I settled in for what I expected to be an uneventful, boring evening.

The party started, and I milled around with the other employees and guests, doing my best to enjoy the holiday cheer. As expected, the talk was uninteresting, and I started to grow a little restless.

Feeling my phone buzz, I picked it up, and the front desk informed me that Mr. Williams had arrived and was waiting for me to escort him into the building.

After disconnecting, I sighed to myself, "Well, let's get this over with. The sooner I get this done, the sooner I can get out of here."

I headed to the lobby and opened the door. Sitting in one of the chairs was one of the most well-dressed, imposing men I had ever seen. He saw me and stood. His muscular, six-foot-tall frame was mesmerizing. He paused as he looked me over from head to toe, smiling and nodding.

I don't know what came over me, but I could feel a heat start to flicker between my legs. I had never had a reaction like this from any man other than my husband.

"Well, Ms. Cartwright, I am so happy to finally meet you. Carl has told me all about you. He didn't mention, though, how truly stunning you are."

We shook hands, my panties moistening with his touch.

"I am so happy to meet you as well, Mr. Williams," I stammered. "Let me show you around."

"Leslie, please call me Josh since we will hopefully be working closely together very soon," he said as he smiled, doing nothing to hide his ogling of my chest.

We made small talk as I showed him around the office. We walked through the revelers, holiday music playing, Christmas lights and decorations all around us. I introduced him to a few of my colleagues after fetching him a scotch from the makeshift bar set up for the party. He kept glancing my way as he spoke. I could tell he was undressing me with his eyes. I should have been upset, but it continued to turn me on. Here I was, a happily married woman, getting completely aroused by a man I had just met.

He turned to me and whispered in my ear. "Leslie, why don't you show me your office?"

Knowing what he wanted, I should have stopped it there. Instead, I just nodded and led him to my office. We entered, his hand on the small of my back. Once we were both inside, he closed the door behind us and locked it. The clicking of the lock sent shivers down my spine.

He pulled me close, our mouths coming together in a steamy kiss. I let out a small moan as his tongue swirled with mine, the party completely forgotten now.

Josh spun me around, his fingers finding the zipper on my dress. Slowly lowering it, he slid my dress from my shoulders until it fell, pooling at our feet. He then deftly unfastened my bra, and it too dropped to the floor. I was now standing in just my black lace panties, sheer black hold-up stockings, and four-inch pumps.

Josh turned me back to face him. He expertly thumbed my protruding nipples before lowering his head to suck and lightly bite on them. Each lick and bite sent electric pulses to my core.

He gave my shoulders a light push down. I knew what he wanted. I wanted it too.

Getting on my knees, I slid my hand over his stiffening cock, unfastening his belt and lowering his zipper before pulling his pants and boxers down together.

His cock was hard and thick. At least eight inches, much larger than my husband's. The tip was already leaking pre-cum. Licking it off, I tasted the sweet, salty flavor before wrapping my lips around his shaft, savoring the feel of his spongy head against my tongue.

I could faintly hear the sounds of other guests celebrating and the holiday tunes continuing to play outside my office, but my concentration was singularly fixed on the hard cock now sliding in and out of my willing mouth. I could feel every ridge, every vein, as he held my head and started to fuck my face.

Josh slid his shaft out of my mouth. I instantly missed the thrill of performing the illicit blowjob. With no time to beg for him to put his cock back in my mouth, Josh effortlessly lifted me, spun me around, and bent me over my desk. Ripping my lace panties off with a quick jerk, he lined his rock-hard cock with my now drenched pussy and rammed it fully inside me with a single thrust.

"You like this, don't you, Leslie? You like me filling your married pussy with my monster cock while your silly Christmas party goes on right outside your door."

"Yes, Josh. I so love you claiming my married pussy just a few feet from all my colleagues."

He audibly grunted with each of his thrusts into me. I whimpered as my hand dropped between my legs to rub and circle my swollen clit.

"I'm going to love filling you with my massive load, Leslie."

"Yes, I want that. I want you to fill my cheating womb with your hot cum."

The incredible fullness and exquisite friction of his brutal fucking finally took me over the edge. My eyes rolled to the back of my head, and I screamed as my orgasm struck.

He continued to plow me throughout my orgasm until he finally grunted and filled my cheating pussy with his copious seed. I could feel each and every spurt as it coated my insides, triggering yet another mind-blowing orgasm out of me.

I just lay across my desk, completely spent, barely able to lift my head. Josh slid his spent cock out of me and pulled his pants and boxers back up.

He looked down at my prone body with a smirk. "I'll let myself out. Thanks for showing me around the place. I will let Carl know that I will be sending our business to your company on the condition that you take care of all of my company's needs personally. Merry Christmas, Leslie."

With that, he turned and let himself out the door. I struggled to my feet, put my bra back on, and smoothed my stockings. My panties were torn, so I put them in my purse to dispose of them later. I slipped my dress back on and fixed my makeup. I needed to get myself presentable again before I rejoined the party. Once I had myself together, I opened the door to my office.

There in the hallway was one of our accountants, Philip. He looked my way with a knowing smile on his face, obviously just having seen Josh leave my office.

Well, I had always thought Philip was kinda cute, so I just walked up to him, grabbed his hand, and took him back into my office as I felt Josh's cum begin to leak down my legs.

I thought to myself, "I had these holiday work parties all wrong. I think I am going to really enjoy them moving forward."