I am fifty-five and own a medical research firm. It is the biggest and most prestigious medical research company in the US. They call me Doctor Mac, not because I was a medical doctor, but because I had a doctorate in pharmaceutical science. I am divorced and have three grown daughters. I live in a large house all by myself. I have cleaning staff three days a week.

I am 6'-2" with an athletic build. My hair has been grey since I turned fifty. I've been told that I am damn good looking, but I do not date much anymore. When I go to parties, galas, or award ceremonies, I usually take one of my daughters or occasionally my ex will attend with me.

My ex is a beautiful blonde named Mandy. She is tall and thin like a model. She is five years younger than me. We get along fine now, but when we were married, we were like oil and vinegar.

It is very hard to get a job at my company as we only accept top tier researchers or support staff. We often hire top students recommended by the universities as temps first. The temps really get put through the ringer until they prove themselves. They are often susceptible to practical jokes.

Monday morning, I walked into my office, and I shut the door and sat down, before I realized there was a naked young lady standing by the couch. She was standing with her arms, trying to cover her small perky boobs.

She was a petite redhead no older than twenty-four years, which is younger than my youngest daughter. Her areolas were pink and puffy with dark pink long nipples. She had a landing strip above her pussy, and she had a small tight round butt.

"Um, Doctor Mac, I was told to come in here and take all my clothes off for my medical exam. I'm a new temp here. My name is Kat," the young girl said.

I could hear laughter from outside the door. "Miss Kat. Please put your clothes back on. I am afraid there is no medical exam," I explained. "I'm afraid we, um, mostly you, have become victims of a mean childish prank."

Tears welled up in her eyes as I turned around, as she quickly put her pink lace panties and bra on. She shimmied into her pencil skirt and pulled her sweater over her head. She stepped into her shoes and was shaking in fear. "I really need this job I have studied and worked hard for four years to finally get here. Please, Doctor Mac, I'm sorry you had to see me this way."

I walked over to her and lifted her cute face up with my fingers under her chin. I looked deeply into her eyes and said, "I can assure you-you are not losing your job. In fact, I want to apologize for this awful prank. I will have Joan in HR come see you in a few minutes, so that you can fill out a formal complaint. I will deal with the pranksters."

Kat and I walked out of my office, and everyone had scattered except Millie, my executive assistant. Millie was sixty-two and had a killer body. She dyed her hair deep red and her 42D tits stuck straight out. Millie took Kat down to HR.

Millie had already found out who pranked Kat. She mouthed me their names as she turned to take Kat. "Bruce and Mark"

Before Millie made it back to her desk, Bruce and Mark had been escorted off the premises by security.

Weeks had passed, and I heard excellent reports about Kat's work and work ethic. I walked down to the elevator and rode down to her floor. Kat worked in the lab and was wearing a white lab coat and safety glasses.

Kat saw me enter the lab, and she turned red and hid behind other lab workers. "Guys! I just wanted to come down here and tell you that you are doing great work. The research findings coming out of this lab are top-notch. Where's Kat? There she is. Kat has done tremendous work since being here for a short time. So, she gets lunch with the boss, our monthly reward. Keep up the good work and Kat, I'll see you on Friday. Millie will send you an invitation," I said.

Doctor Mac was sitting at a table at one of the most expensive restaurants in the city. The table looked over the bay. He noticed Kat walk in wearing a strapless red gown that stopped mid-thigh. She was wearing red stockings and red stilettos. He stood up and watched her walk elegantly towards him. He pulled out her chair and kissed her on the cheek. She sat down and he placed her napkin in her lap. The Doctor was wearing a black suit with a grey shirt and a black tie.

"You look very beautiful, Kat. Thank you for having lunch with me," Mac said.

Kat blushed and smiled and replied, "Why thank you sir, but if you remember, you saw a little bit more of me in your office."

"Oh, I will never forget seeing you in all your glory. In fact, I can't stop thinking about it," he said. She blushed a deeper shade of red.

They ate a spectacular lunch, and they talked about each other for two hours. Kat was originally from West Virginia. Her dad was a coal miner, and her mom worked as a cashier at the local supermarket. She had three older brothers who all worked in the mines. Kat had four sisters, three older and one younger. The youngest sister was sixteen. She was autistic and could not communicate very well, but with Kat, she functioned much better, so she was devastated when Kat moved away. Her three older sisters married coal miners and all had children. Kat was the only one that went to college. She went to West Virginia University on a full scholarship majoring in medical research. She is single and only dated two boys in college. One a football player and the other a science nerd like herself.

Mac told Kat how he started his business at the age of thirty after being the top researcher for the US government. His business took off fast and, in five years he was a multimillionaire. Mac bought the eighteen-story building that they work in. The building is in downtown Tampa, Florida, where it is always warm and humid.

After lunch, Mac had a limo pick Kat up and take her home. She was given the rest of the day off. While sitting in the limo, Kat could not get Mac's handsome smile and sexy voice out of her mind. She thought he was hilarious, smart, and kind. Her panties got a little moist on the way home.

Mac went back to work. In his office, he leaned back in his chair and thought about Kat. He loved her light green eyes and the way she kept flipping her hair when it fell over her eyes. Her bubbly personality, her wit, and intelligence intrigued Mac. She was a beautiful young woman. His cock got hard when he thought of her sexy naked body standing in his office.

Kat was sitting at the station in the lab when a delivery man brought her a vase of flowers. Everyone smiled at Kat. She read the note: 'I really enjoyed our time together last week. I hope we can see more of each other.' Signed 'M'. Kat spun in her chair and said, "Wow!"

A few hours later, Kat went to the executive floor. She asked Millie if she could see Doctor Mac. Millie stuck her head into his office. "You have a visitor. Miss Kat is here to see you. Do you have time?"

I nodded and waved Kat in. She sat on the couch with her legs crossed. She left her lab coat downstairs and was wearing a loose white blouse with a pleated red skirt. She wore back stockings and the way she was sitting you could see the top hem of the stockings high on her milky white thigh.

"Um, first, thank you for the flowers. They are beautiful. Second, I wanted to get clarification on your note. What does 'I hope we get to know each other better' mean?"

I said, "It means I enjoyed your company immensely and I would like to have dinner with you or go for an evening stroll on the boardwalk."

"Do you not have company policies about employees getting romantically involved with one another?" Kat inquired.

I stood up and walked towards Kat. I replied, "No, there is no such policy here. I figure the employees spend a lot of time at work and that it would be natural if some of them fell in love. If there are complaints about harassment or abuse, then HR will handle the situation, even if it's me. Now I did not say anything about a romantic relationship. But if that's where it goes, then so be it. I am twice your age, though." I bent over and kissed Kat gingerly on her soft lips.

Kat's heart rate increased, and she started panting. "I'll be glad to go out with you, but I have to go now," she added. She got up and quickly shut the door behind her. She leaned on Millie's desk and flooded her panties. Her body shook, and she moaned.

Millie smiled and gave her some tissues to wipe her wet thighs. Kat walked red-faced to the bathroom.

'Friday night, a limo will pick you up at six. It will take you to my house where we will have a chef-prepared dinner and then drinks on the beach.' Kat read the text from me.

Kat packed her bikini into her bag. The limo picked her up on time and it took her to my large estate that backed to the gulf. White sands and crystal blue water. Kat was wearing a green, low-cut string, strapped dress that was form-fitting. A garter belt held her black stockings up, but she had no panties. Her braless breasts were perfectly outlined in the top. Her small, upturned breasts left little for the imagination. Her shoulder-length red hair was pulled into a small ponytail.

I was wearing another black Armani suit with thin pinstripes. I wore no shirt under my jacket so that my hairy grey chest was exposed. My pecs were large and firm. My stomach was flat but wasn't defined.

Kat greeted me with a passionate kiss, and our two tongues danced together. Her lips were soft and her skin baby smooth. I was having second thoughts about starting a relationship with a woman this young.

We ate a great four-course meal with two bottles of wine. Our conversations probed deep into our personal lives. We decided to take a stroll on the beach. So, Kat changed into her bikini and I into my trunks. Kat's bikini was pink with a top barely covering her small breasts, and the bottoms were thongs. Her young ass was firm and round.

We held hands as we walked about a mile. As we headed back, I asked, "Why don't you have any problems starting a relationship with a much older man? You are beautiful, smart and funny. You can have the pick of the litter of all the young guys in the city."

"Do you have a problem with dating someone as young as me?" She replied.

"Hell, yes I do. You are younger than my youngest daughter. What are they going to say? What is their mother going to say?" I spoke.

"All that matters is how we feel towards each other. Nothing else matters. Let's see where this goes," she continued.

"Where do you see this going?" I asked.

She replied as we got back to the house, "Well, tonight. You are going to take me to your bed, and we are going to fuck each other silly." She dropped her top and bottoms and she ran naked to the house.

I found her on my bed. She lay propped up on the headboard with her legs slightly spread. I untied my trunks, and they fell to the floor. Kat's eyes widened as she was getting the first look at my cock. My circumcised cock was fully erect at seven inches. My shaft was thick but smooth with a pink helmet head.

"I like that, Doctor Mac." she teased.

I spread her legs and pushed my nose onto her red landing strip. Her labia were smooth, with short pink inner lips. I ran my tongue over her starfish. I twirled it around and darted it in a few times. Kat squirmed and squealed. "No one has ever licked my ass before. It feels so good."

I kept tonguing her anus as I inserted two fingers in her pink entrance. Her pussy muscles clamped down on my fingers as I found her G-spot immediately. She arched her back and blew out a large breath of air. I felt my fingers become coated with her warm creamy nectar. I took my fingers and sucked her essence, leaving some for her as I placed my fingers into her mouth.

My tongue now found its way into her entrance and up her slit, dragging over her tiny clit. I licked her. This was for several moments. She was panting and pulling my hair. I clamped my lips over her clit and sucked and bit. Kat let out a growl as her body shook with a tremendous orgasm. I kissed my way up her belly and my mouth and hands found her firm, perky tits. Her areolas were puffy, and her nipples were stiff. I bit the sides of each tit, leaving a lasting red mark.

My mouth found hers and we passionately kissed as she wrapped her legs around my waist. My cock head rubbed against her pussy, causing Kat to pant again. "Fuck me, Mac. I need you inside me," she pleaded. I pushed my cock head into her entrance, and she gasped. Her pussy was warm and soft as I continued to slip inside her. She was tight. Her eyes glazed over, and she bit my shoulder as all of me was inside her. I just held it there to let her adjust to my thickness.

Kat's hips started pushing up on me, letting me know she wants to be fucked. I fucked her at a slow pace with long strokes. She grunted with every thrust. This girl was amazing. She was fucking me back in sync with me. Kat trashed her head from side to side and her entire body shuddered. She dug her heels into my ass as she screamed, "Oh God! Oh God! Baby, I'm cumming. Fuck me. Give me your cock. Fill me up with your seed!"

Her pussy clamped tight over my cock, and she spasmed. My semen flowed into her, more than I could ever remember. She felt the warmth and wetness of my deposit and closed her eyes in ecstasy.

I held her with her head on my chest and, we continued to talk late into the night. We fell asleep in each other's arms.

We spent the entire weekend together. I had to take her shopping for additional outfits. We had a great time. We made love throughout Saturday and Sunday. We had to stop, as her pussy was sore.

The limo took her home Sunday around seven. As soon as she left, I was missing her. I found her earrings on the nightstand Monday morning, so I put them in my pocket.

In my office, I placed the earrings on a tray on my desk. Millie came in and stated that my girls and ex were on their way up.

Mandy and my three gorgeous daughters walked in. They all hugged and kissed me. They came to convince me to go to the mountains for two weeks with them. All three of my girls looked like triplets and easily clones of my ex. The difference was that Mandy had beautiful teacup sized breasts, and each of my girls had large firm breasts. The youngest noticed the earrings on the tray. "What are these, Dad? Why do you have earrings on your desk?" she asked.

"Well, if you must know, I had a lady friend over this weekend and she left them on my nightstand," I replied. The girls were excited that I finally met someone. The ex, even though she dates a lot, wasn't so thrilled as she still likes to think she possesses me. "Tell us all about her. Where did you meet her and when can we meet her?" the middle child chimed in.

Millie was not at her desk, so Kat opened the door and came in as the girls were all questioning me. "Oh, I'm sorry. Millie is not at her desk, and she called to say you found my earrings," she stammered.

The four blonde's eyes all grew big and stared at young Kat. My ex said, "What the hell Mac? Are you dating high school cheerleaders again? She is as cute as a button, but come on."

Kat's face turned red and her eyes teared. She was about to turn and run when I stopped her, and I put my arm around her. "All of you just shut the hell up. This is Kat. We are seeing each other. I have deep feelings for her, and I hope she has some for me. We are trying to get to know each other, and I am going to continue to pursue a relationship with Kat, whether I have your approval or not. She is a lot younger than me, but I find her to not only be beautiful, but witty, kind, intelligent and caring. This is the kind of person who I am attracted to."

Kat looked up at me and smiled. My three girls surrounded Kat and excitedly asked her many questions. They hugged her and held her hand as they talked. My ex said, "Mac, if that is how you truly feel, then I think it's a wonderful thing. Watch out Kat, he...