Sister's Good

Talking to my sister Megan, she let me know she was dissatisfied with her sex life. Telling me that she and her husband hardly ever did it.
She also mentioned his cock is nowhere near as big as mine.
We were both drinking in their house at the time, with her husband away working.

A few drinks later, my sister walked back into the kitchen where we'd been sat, absolutely naked. Asking me, if I was her husband, would I want to fuck a woman who looked like her, I told my sister "Every single day".
So my Megan replied by bending over the kitchenwork surface "Well come and fuck me then".
My dick was out of my shorts and up her already wet pussy in seconds.

I can't blame the alcohol, or my sisters obvious need for sex, because id always wanted to fuck my incredibly pretty younger sister and in doing so, had the time of my life.
Once we'd been fucking a few minutes and she'd orgasmed, I lead her upstairs and into her marital bed.
It was on Megans bed, I took my sister anally. She wanted it, by Christ did she want my cock up her arse, but i'd never fucked anyone who really craved anal sex like my sister does.
And that was it for the rest of the night.

Me licking her pussy and arse, her sucking my cock and balls, and tonguing my arsehole too.
And fucking in every way possible, until she'd orgasmed countless times and I'd cum twice, both deep inside her backside.
When we woke up the following morning, there were no recriminations, or second guessing why we'd committed in***t. We both knew and fully understood we'd fuck again.

And that's exactly what we did when Megan mounted my morning glory.
She rode my dick arching her back and having me thumb her clitoris. Her orgasm was so powerful, that her pussy gripped my cock like a vice, which had me cumming so violently up her c**t.
There was no pretense from either of us when she lay next to me. We kissed like lovers and then broke away, with my sister telling me it was the best sex she'd had in years.
Staying in bed, we sucked and fucked twice more before sleeping again. I spooned my sister and heard her say before we drifted off to sleep "I'd love you to be with me always".

When we eventually rose out of bed, I watched my gorgeous sister shower and got a stiffy. She knew I was there and played with her arsehole teasing me. We didn't fuck, but I did join her in the shower to give my sister a long wet vaginal and anal tonguing.

Knowing her husband was due home after his flight back from Germany, Megan wanted one more sexual experience with me.
She drove us out into the countryside and had us strip naked in a small field. We had oral sex lay in the long grass, then I fucked Megans arsehole as she held onto a fence post.
It was amazing watching my own cock thrusting into my sisters arse, and hearing her saying my name with real lustful love was incredibly beautiful.

Megan's husband arrived back from Germany eight weeks ago. Every week since, my sister has visited my flat for sex. Only it's not just the sex, as I'm actually falling in love with her, and my sister has told me she wants to move in permanently with me.
Megans exact words were "I need to share the rest of my life with you, as man and wife. We should buy a place together".

I've already spoken to two estate agents about selling my flat. It's looks like Megan and I will be living somewhere else together soon.