Nancy the Sister in-Law

My wife Lori and I had been married for almost eight years. We have three children and a great marriage in the making. At 24, my wife was three years younger than I am. My wife has a younger sister, who at the time, was single and well fit.

When I first met my wife, more than 14 years ago, her younger sister Nancy was only 13 years old. She was about 5'4" and very skinny. She looked like a typical high school girl who was as awkward and naive. My wife and I dated for a couple of years before we got married. Although I was very close to her family, it seemed I rarely saw Nancy during this time. Quite honestly, I never gave her much thought. But all that would change.

I remember very distinctly the night of our wedding rehearsal. Nancy showed up in her tight shorts just as we were about to get started. She was one of my wife's bridesmaids. When I first looked at her, I did a double take. Nancy had matured into a very shapely and attractive young woman. I could hardly believe that this was the same girl I met several years earlier. She had an amazing pair of boobs and a perfect ass to match. One of my ushers, who knew the family quite well, also noticed the change.

"Where did Nancy got those tits?" He asked. "She didn't look like that the last time I saw her."

Later that evening, Lori even made a comment.

"I wonder if the change in Nancy's body is a result of taking the pill?" she responded. "I've heard that large boobs can be a common but welcome side affect."

During our wedding, I couldn't get it out of my head all the attention my new sister-in-law was getting. I tried to put all of the attention aside and started to-pay-attention to the new bride to be. Naughty me!

I never thought of the chance since. But, fastforward the situation to two years later.

The years passed and Nancy and me started to fuck every chance we could. We would get it on at every opportunity. Nancy would often come over during the evenings, and take advantage of our house. I worked evenings so I was always anxious to see her in her revealing tank top and skin tight bike suit, or her even skimpier outfits. I was careful not to make my lust for her obvious, but it was sometimes quite hard. She had this one skintight skirt with a zipper up the side. One day my four year old son pulled it up quickly. I got a very good look at her succulent thighs.

It was a Thursday morning in late October. I was just settling in from work when the phone rang.

"Hi, what's up?" Nancy asked. "Mom and Dad are away until Sunday and I was wondering if I could spend the night with you guys?"

By now, Nancy was senior in high school and her eighteen year old body was looking very hot.

"I wanted to know if I could baby-sit your kids overnight," she begged.

My wife had to work the graveyard shift. It was just our kids and I staying at the home front.

"Why don't you come on over and take care of our kids this evening?" Lori suggested. "It would be a good chance for them to visit their auntie. The only thing is I won't be back until later tomorrow morning."

"That's a great idea," said Nancy. "I'll be over quick."

When she arrived, about 30 minutes later, we talked briefly. I couldn't help notice that her ass was very shapely. I figured that it was in great shape from the entire biking she was doing.

"I'll be back by about 8:00 am tomorrow," my wife said. Nancy agreed that she would be dropped off later.

Just before 5:00 that day, Nancy showed up as promised, my in-laws dropped her off. When she came in the apartment her hair smelled magnificent.

"Hi Nancy," I greeted her. "Your sister is in the other room."

I offered her a soda and we sat down in the family room and chatted. She looked amazing! Her ass was incredible. She was wearing a loose fitting blouse that kept falling forward when she reached over to pick up her drink. I could see right down her top. She was wearing a thin white lace bra. Every once in a while I could clearly see her nipples poking through the thin material.

We must have lost all track of time because about an hour later my wife was heading out the door to go to work.

"Listen," she said, "I'm going to head out. You guys behave. I'm going to work the night away and I'll see you in the morning." Lori bent over and gave me a kiss.

We lived in mid-Michigan city, so I looked out the window and I quickly realized that I was alone with her foxy sister. I thought to myself how am I going to entice this young vixen?

"Say Nancy, perhaps you should get into something more comfortable," I stated. "Why not put on your pajamas and join me for a movie?"

She seemed a little apprehensive about us being alone with the kids fast asleep, but I told her not to be shy.

"Look, I'll pop some popcorn and get some drinks ready," I suggested.

She did just that. Nancy thought it was a great idea. She told me to go ahead and cue the movie. She said that she'd slip into some of her pajamas and whatever else, I assured her, to make herself at home. Of course by now my male hormones were starting to kick in. I had never spent any time with Nancy on my own let alone a whole night. This was going to be interesting.

I slipped a video into the player. We shared a bowl of popcorn, and some alcoholic refreshments. During the video we chatted a bit about, school and the drinks. Nancy said that she was enjoying herself and really enjoyed being with me because she would have been exceptionally bored at home.

I've got a real thing for teenagers; Nancy was no exception at the time. I'd fantasized a couple of times about what she wore underneath her clothes. I always fantasized that she'd be a tiger naked. The idea of her wearing nothing brought me to attention.

After the movie, we cleaned up the living room.

"Do you mind if I take a quick shower?" asked Nancy.

"Of course not," I responded. "Let me get you a fresh towel. You can use the shower"

The shower we had was small and tight. It had lots of jets that spray your entire body. While she was in the shower and I went to our room to get my pajamas. The door to the bathroom was closed. I changed quickly. I knocked on the door and asked Nancy if it was all right if I could use the washroom, since it was the only one, she said, "sure." When I entered I could see Nancy's reflection in the two- way mirror mounted on the wall. She was in the shower, which had a semitransparent curtain.

I could see the outline of Nancy's body including her shapely ass and her nice firm breasts. She was washing her hair. As she massaged her scalp, her breasts would jiggle back and forth from the movement of her arms. I could see the hair on her pussy was dripping wet between hers legs. I was transfixed. I knew I should hurry up and get out the room because she'd be able to see me if she stepped out of the shower. Reluctantly I left.

About ten minutes later she came down the hallway and into the living room. She was wearing a pair of light blue tank top. They looked great. The pajama top was quite tight since she has bigger boobs than my wife. Her shirt took the attention away but her buttons was revealing and it was clear she wasn't wearing a bra. Her nipples were straining against the material.

"Would you like to watch another movie?" I asked.

"Sure," she said, "that would be great."

I was an avid collector of VHS's so I always have the most current releases available. Even though I had a ton of recent movies, she chose, Fatal Attraction.

"Maybe watching this will warm me up on this cool night," she giggled.

I could think of other ways to take care of that. We cooked up another batch of popcorn, grabbed some more refreshments, and settled in for the flick. About half way through the movie, Nancy said she was a little chilly. I got a big comforter from the closet and put it over the two of us. This seemed to please Nancy. She moved a bit closer to me and laid her head on my shoulder while we continued to watch the movie. I instinctively put my arm around her and got cozy as well. With her leaning on me like that, I could see down the front of her shirt. Her boobs were amazing. I desperately wanted to put my hand down the front of her shirt and play with her nipples but I knew better. I prayed that the growing bulge in my pants would go unnoticed by Nancy. Or did I?

The movie ended around midnight.

"I'm getting very sleepy," said Nancy. "I think I'll get ready for bed."

"Why don't you use my daughter's room," I said. "I'll help you change the sheets."

We got the room ready and both headed off too bed in separate directions. Before I left her, she gave me a peck on the cheek and thanked me for being so kind to her. As I lay in my bed I was imagining her naked and her joining me.

About two hours later I was awoken by Nancy. She was standing beside my bed still dressed in her pajamas.

"I'm a little chilly and I want to get some sleep," she informed me.

"Listen," I said gallantly, "you climb into the bed and get warm. I'll put my shirt back on and sleep on the couch in the living room."

"Now who's the one that's being silly," she responded. "This king size bed has more than enough room for the two of us."

I agreed without hesitation and hopped back into bed. Even though Nancy was my sister-in-law, it was a little strange lying next to another woman after a few of years of marriage. I had a hard time sleeping. So did Nancy. She got up to go to the bathroom and was gone for several minutes. When she came back into the room, I noticed that when the light from the moon hit her pajamas, I could clearly see the outline of her nipples. They were very hard. This was probably due to the cool temperature. I could also see the outline of her bikini panties. They were smaller than any panties I had ever seen my wife in. I was afraid that my now raging hard-on was going to give my thoughts away.

Nancy slid back under the sheets and was lying on her side. She curled up into the fetal position and had her ass pressed up against my bulge. That was about all I could stand. I rolled onto my back.

"Is everything okay?" she asked. "Everything's fine," I grunted.

Just as I was about to fall asleep, I felt one of Nancy's hands on my chest. She had rolled over onto her stomach and had her arm over my body. I thought she was asleep. But as I lay there, almost paralyzed with fear, her hand started to creep lower. Finally she had her hand on top of the bulge in my pants. Then, without warning, she slipped her hand inside my pajama bottoms and began to massage my cock. Now I knew she was awake.

"What are you doing," I asked stupidly.

"Don't you like it?" she said.

"Of course I do," I stammered.

"Then just relax and enjoy yourself," she coyly said.

"What would your sister think of this?" I pleaded.

"Don't worry about her, I always took things that belonged to her," she giggled.

By now she had moved her head down to my crotch and had helped me to pull my pants and underwear off. She was gently blowing warm air around my fully engorged cock. Then she began to suck on my cock with a gentle swirling motion of her tongue. I was in ecstasy. I'd been so worked up during the evening that I was afraid I would cum before things had gone any further, but I managed to keep calm.

All the while she was working on my cock I was trying get my hand up Nancy's top to massage those beautiful boobs. While still sucking on my cock she rolled over on her side so that her front was facing me. Now I could undo her buttons with ease. As I did, her firm tits sprang out of the top and stood squarely in front of me. Her rosy, but tiny pink nipples were hard and erect. She was gorgeous. This was all too much. I couldn't hold back any longer.

"Look out," I screamed, "I'm going to cum."

My cum splattered all over her luscious boobs. She scooped up my juice and licked off her fingers with great fever.

But the fun was only just beginning. I just had to have a nibble. I rolled Nancy onto her back and kissed her fully on the lips. We exchanged tongues at a furious pace. My hand started to massage her naked tits. They were magnificently firm. And her nipples were small and erect, I hadn't felt boobs like that since I was 18. I kissed and nibbled her neck and worked my way lower. I finally reached Nancy's breasts with my teeth. I kissed her nipples lightly and then put them between my teeth and bit on them gently. She started to moan in pleasure. I knew I had to take this further.

While continuing on her tits, I let my left hand wander over her flat stomach until it reached the top of her bottoms. I inched my fingers under the waistband and slid them into her pants. I kept reaching further until I got to the top of her panties. As I slipped my fingers under the elastic, I could feel the trace of her pubic hair. It felt soft and curly under my delicate touch. As I inched even further down, all the while kissing her tiny swollen nipples, I felt her moistened slit with the tips of my fingers. Her clit was small. Yet, it was becomming engorged and her panties were slightly wet. I stroked my finger up and down her slit, occasionally slipping one inside her hot cavity. She was moaning very loudly.

"Take off my bottoms," she yelled ecstatically.

This came as a complete shock, but she didn't have to ask me twice. With the full moon shining through the crack in the drapes I could see her body as if it were daylight. I sat up on the bed and helped her to pull down her pants. She gave a slight lift to her ass which made it easier. I left her panties in place on purpose. I love lingerie, and I just had to see these. They were yellow lace panties. They were just like something out of the Victoria's Secret catalogue that my wife received each month. The material was wedged inside her crack and she looked ever so slutty. Although I loved the look of them in the moonlight, they were definitely in the way. I slowly eased them down, over her knees, and tossed them on the floor.

Nancy ran her hand through her pussy hair and stuck a finger in her moist opening. She then licked her fingers very seductively.

"How does that taste?" I asked.

"Why don't you find out for yourself," she urged.

With that, she spread her legs as wide as she could and pulled her cunt open with both her hands. I got down between her widely spread legs and began to kiss her thighs. My kisses got closer and closer to the target

"Stick your tongue in my pussy," she begged. "I can't take anymore of your teasing."

I finally did as I was told. I flicked my tongue over her clit and she shuddered in excitement. I then worked up and down her slit as she grabbed the back of my head and pushed it further into her pussy. My fingers were helping to keep her lips open as I sucked on her clit. It was big enough that I could gently bite it with my teeth. I had only worked her with my tongue for a few minutes, but that was enough. She bucked in orgasm and the floodgates opened.

"No one's ever eaten me out like that before," she confessed, "as a matter-of-fact this is my first time ever."

"Do you enjoy it?" I inquired.

A sly look came over her face.

"Do you think we could talk dirty while we have sex?" she asked demurely. I readily agreed.

"Do you want me to lick your pussy again, or am I gonna fuck you silly?" I taunted.

"Lick me, lick me," she pleaded. "Lick me 'til I cum."

I dove back down between her legs and licked her silly. She was practically squealing in delight.

"You're so damned wet," I shouted. "I've never seen so much pussy juice."

"If you keep doing what you're doing you'll taste a lot more," she moaned.

"Don't stop," she begged. "I'm so close." I continued to flick her clit with my tongue until she flooded may face with cum. It was delicious.

"Oh my god," she screamed, "that was so intense."

By now I was aching hard again. I wanted to fuck her so badly. After years of lust and fantasy, it was finally coming true.

"I want that cock deep inside my pussy," she yelled.

Who was I to deny a beautiful woman her wishes? She grabbed my cock and sucked it up and down with her spit-covered tongue. It was so wet it was dripping. She then guided my cock to her moist and eager slit. With a slow and steady pace I plunged my cock deep into her open and yearning cunt. For a woman who had had 2 children, she was amazingly tight. I could feel her pussy muscles as she tightened them around my cock.

"Pump me," she screamed. "Pump me hard. Grind my pussy with that hard cock."

I fucked her as hard as I could. She had her legs wrapped around my back, and was almost forcing me deeper into her pussy. After letting me out of her leg grip, I flipped her onto her front and slammed into her from behind. She moved her sexy ass to meet my every thrust. Her firm and ripe tits were swaying back and forth as I pumped her cunt over and over.

"Ride my pussy," she moaned. "Take me all the way."

After 50 or 55 minutes of this, Nancy said she wanted to get on top. I rolled onto my back and she got into position. She grabbed my swollen cock and guided it into her steaming hole. The whole bedroom was filled with sweat and juices. It was incredible. Watching her whole body slam up and down on my cock was wild. Her tits were jiggling in front of my very eyes. I grabbed them and pulled her towards my mouth so I could suck her nipples.

"Suck my tits," she yelled, "suck them harder."

As she was riding my rigid pole, she would sink down against my groin and grind our pubic hairs together. It was an unbelievable feeling. Her pussy tightened harder again, around my aching cock. I could feel her orgasm dripping out of her and covering my balls. We'd been fucking for close to an hour.

"I can't hold back any longer," I yelled. "I'm about to cum again."

"I want you to cum all over my face," she shouted.

Although I had never done this on purpose to any woman, I had seen it several times in porno movies. I jumped at the chance. Nancy quickly rolled onto her back and I straddled her chest with my legs. I noticed my cock was black and blue from her tightness. I never had a virgin. Nancy didn't hesitate, she grabbed my rock hard cock and pumped it up and down while playing with my balls. Bingo! I let loose a never-ending stream of cum that landed in her hair, covered her face, and splattered her succulent boobs. I was spent. We lay there in the bed in our own juices. In seemed totally natural. We were so caught up in our sexual antics that we hadn't even noticed that the time flew by.

"Why don't we take a shower together," Nancy suggested. "Then we can change the sheets, and get some sleep."

In the shower we managed to fuck again. This time I pumped her pussy full of sperm. She wasn't on the pill or anything but I figured it was her first time and it'd be safe.

In the next few hours we slept in each other's arms. My wife called and said that she had to work overtime. Nancy and I had another fucking session before the children awoken!