For the last three years my brother in law, his wife and their daughter Sarah have been staying with us over the Christmas and New Year period. They live in Germany and our home is big enough to accomadate all of them, so they spend Christmas at ours so they can have time visiting with all the family.

Last year I had to go into work for a short time on Christmas Eve and Sarah asked if she could come with me. She's not long had her seventeenth birthday and was learning to drive. She'd already hinted at wanting to drive my sports car so I told her there was a very large car park at work, where I might let her drive it.

The work done, Sarah appeared back from the ladies and asked if she could have her lesson in the sports car. Not really wanting to risk her damaging it, I told her I get my wife's car and I'd let her drive that. That's when my wifes niece said "If you let me, I'll do something nice for you, please!". Looking into her big hazel eyes I said yes.

I nearly regretted it after only a couple of minutes, when Sarah in a car park the size of a football pitch, almost hit the only other car there. Thirty minutes and lots of laughter later I asked Sarah to pull over. We were at the far end of the car park, close to a wooded area on the other side of the fence. I was about to get out and swap seats with Sarah, when she took off her seat belt leaned over and kissed me fully on the lips. Surprised but also very aware of how beautiful she is and how her gorgeous body was pressing up against me, I responded and began kissing her back.

I knew what we were doing even at that early stage was wrong, but Sarah's right hand made me go further as she started to rub my cock through my trousers. Before I knew it my cock was being taken out of my trousers through the zip opening and Sarah was bending down, taking my swelling cock into her mouth. Sat on the passenger seat in my own car, my wife's seventeen year old neice was giving me a blow job and it was absolutley fucking amazing. Reaching around her I began to caress her small breasts, feeling them through the jumper she had on. About five minutes of Sarah sucking on my cock and my attentions to her breasts had me ready to cum, then just as I was about to shoot my load in her mouth she quickly sat up, leant back against the drivers door and lifted her legs so her feet were pressing onto the roof of the car. It gave me a great view of Sarah's naked pussy, looking at me smiling she said "Your turn, I took my knickers off in the toilet".

By then I didn't care if anyone could see us and I quickly spun myself around and buried my face into her very wet pussy. My wife moans when I'm licking her out, but it's nothing to the moaning Sarah makes. And my wife's one orgasm she has during my pussy licking doesn't start to match the amount of time Sarah came all over my face as she pushed my face further into her sweet tasting c**t. It was daylight when I'd started licking and sucking away at her pussy, it was getting dark when she asked me to lick her arsehole. I'd never ever done it before, but it didn't stop me from pulling her arse cheeks apart and giving her rose bud just as much attention as I had her pussy. It was a new experience for me, but I'm sure Sarah had had it done to her before.

With one last orgasm flowing through her as I licked away at her arsehole and fingered her tight pussy, Sarah asked me if I wanted to finish myself off in her arse, saying she wasn't on the pill. Getting out of the car into the cold evening air, I made Sarah lean against the boot of my car as I stood behind her. Once again she took the lead role and guided my straining cock upto her tight arsehole. It took some time and some of my spit to finally get passed her sphyncter muscles, but when I started to fuck Sarah, she was just as eager to please me, as I was to have my cock pounding away at my wife's neices arse. Unfortunately for me I didn't and couldn't last too long only a couple of minutes, as her arsehole was so tight it milked my cock so much I came hard and fast. The sight of her perfectly shaped arse impaled on my cock still gets me hard today.

Sat back in the car Sarah asked me if we ever got time alone over Christmas and New Year, would I have some more driving lessons with her. I knew exactly what she meant and yes we did have some more driving lessons. Sometimes in my car and only oral sex. Also twice in our house when her parents and my wife were visiting relatives. The two times we spent alone in the house was even more horny and more sexual, as I discovered just how much Sarah liked her arsehole being fucked hard.

My wife's brother, his wife and Sarah will be staying again this year, only this time I've made sure myself and Sarah will have a lot more time alone together, maybe I'll let you all know how it went.