I loved my wife, Amy, from the first moment I had laid eyes on her. She was kind, caring, and perfect in every way. Her sister though, was the devil reincarnated. She was the image of a supermodel; slim, nice B cup tits, and loved to flirt.

This the story of our first time.

I walked in the door after a long hard day's work to find a note on the fridge saying that Amy had to go to Sydney for work and wouldn't be home until next week, but her sister Bec would be staying at the house for a couple of days.

"Great," I thought. "Stuck with her, will be torture."

I called out but no one answered, so taking advantage of the alone time I filled the bath up and grabbing a beer and jumped in. I was barely half way though the beer when Bec knock on the door.

"John, I need the toilet!"

"Hang on," I yelled back as I made the best attempt to cover myself with some of the bubbles.

"OK, come on in," I yelled.

As she walked in, she looked at me, shrugged and ran over to the toilet. "Ahhhh, so much better," she moaned.

Now I'm only human, but I couldn't help but to look over at her and nothing but dirty thoughts kept running through my head as I stared at her beauty.

"You getting a good look there hey?"
 
"Sorry," I replied, as I imagined sucking on her sweet tits.

She smiled at me as she finished what she was doing and walked over to the bathtub. "Let's see why my sister always goes on about how good you are in bed," she said as she reached in to the water and grabbed my now rock hard cock. "Oh god, it's so big!"

Now I'm no god in the cock department, but I was lucky enough to have been born with a 8 1/2 inch cock, which was now being stroked up and down by none other than my sister in law.

I looked at her and said, "What the hell are you doing?"
 
"Sorry, I just couldn't help myself," she said as she made to stop.
 
Thinking to myself, I decided to push what I could get away with and lifted her tank top up and began to suck on her nipples.

"Mmmmm fuck yeah."

"You like that?" I asked as her hand began to speed up wanking my cock.

"Don't stop, that feels so fucking good," she moaned back.

"Maybe we should continue this in the bedroom?" I asked.

She smiled at me and stood up and took her top of completely, I just stared at her perfect B cup tits. Doing the follow me with her hands she walked out, with me chasing her to the bedroom like my life depended on it. As I walked in I saw her now completely naked with her leg wide open and the sweetest shaved pussy I had ever laid eyes on.

Smiling she said, "Let's see what that tongue of yours can do."

I didn't need anymore of a reason to start as I laid between her legs and slowly began to tease her. I began by running my tongue around and across her pussy lips, as she begged me to suck her clit. I was happy to oblige her, as I began to nibble and circle her clit and lick deeply in to her hole.

I kept it up for about 10 minutes before she came in a screaming orgasm, cumming all over my face and the bed.

"Fuck me! fuck me now, hard and fast!" She screamed at me.

I lined up my cock and rammed it into her hard and fast, as she was constantly moaning and screaming in pleasure. Rolling her over into doggy style, I started to pound her pussy like there was no tomorrow. After she came her fourth time, I moaned that I was gonna blow.

"Blow in me please, I want to feel you cum deep inside me," she begged.

Hearing that I gave a last few couple of strokes before I erupted deep inside her.

"Oh god yes," she moaned.

"Fuck that was great, but we can't say a word to Amy," I told her.

"Look, if you keep fucking me like that when I want it, I won't say a word to her about what we just did."

I smiled at her and just laid back on the bed. Maybe this would be a fun week with her.