Ruth and I have been together for just over 15 years and married for ten. We are both in our forties and keep ourselves in pretty good shape.
Ruth goes to the gym 3 or 4 times a week and has a really sexy body. She's around 5ft 5" with short dark brown hair, she has the most gorgeous ass and boobs which I reckon are just about the perfect size.
I'm 6ft with short light brown hair and I've been told a bigger than average cock.
This story is based on Ruth's daughter Joanne, who is now 29. I've known her since she was just a young teenager and she lived with us for a number of years before getting a place of her own.
Joannes young teenage years were probably like most teenage girls. Lots of talking back, tears and tantrums. We had our fair share of run ins over the years but she calmed down a bit when she turned 18.
Since then we developed quite a close relationship and she would tell me about her latest boyfriends and probably quite a lot of stuff that her mum didn't know about. Her latest boyfriend was called Mark and they have been together for a few months.
Just to give you the overall picture, Joanne had grown into a very attractive woman. She is 5ft 8 inches, very long light brown hair, long legs that ended in a tight ass and gorgeous boobs.
She had started becoming more aware of the effect her looks had on men and would wear low cut tops to show off her cleavage or really short skirts, or both at the same time.
Lots of times before going out she would get me to take pictures of her so she could post them on social media.
Like a lot of 18 year old girls I imagine, she would pout for the photos and put a finger to her lips, pushing up her boobs to get the best photos. Even though she was my step daughter I couldn't help getting an erection on a number of occasions.
I don't think it went unnoticed by Joanne as she seemed to start wearing less and less around the house whenever I was there.
She would walk around in the tiniest shorts and tight t-shirts obviously without anything underneath and bend over in front of me to reach things.
I just tried to look away and do the right thing.
On a couple of occasions, she 'forgot' I was home and came out of the shower completely naked.
"Oh, sorry." she would say, acting all surprised before trying to look like she was covering up "I forgot you were home."
On those occasions I had to go and lock myself in the bathroom and have a good wank.
This went on for a number of months and I got accidental flashes of her boobs and her thong covered ass on numerous occasions.
She had friends over to stay most weekends and that just made things worse. Her friends used to run round our house as well wearing next to nothing. I was beginning to think it was just a girl thing, either that or they were doing it to see my reaction.
Not that our house was a sex free or nudity free zone, it wasn't. Ruth would quite often walk round the upstairs of our house in just in her underwear not caring if Joanne or her friends noticed.
One year we booked a trip to Spain for a fortnight and she asked if she could come too and bring her best friend Amelia with her.
That wasn't a problem as we had booked a two bedroom apartment so there was plenty of room.
I wasn't complaining because the girls would be sunbathing all day by the pool and they would probably do their own thing at night leaving us free to have our own time together.
After arriving at our apartment we got settled in and the girls went to have a look around.
Ruth and I lay down on the bed for a rest after the long trip and one thing led to another. It was pretty hot in the room and we were lying on top of the sheets in our underwear making the most of the air con which had just been turned on.
Wondering just how many chances we would get over the next two weeks to fuck I asked Ruth if she was up for it when the girls were out.
She looked over at me and the bulge in my tight boxer shorts and smiled.
"Well, it looks like you are anyway." she said as she turned on to her side and grabbed my cock through the material.
She sat up properly and took off her bra and thong. She then nodded down to me looking at my boxers saying "If you want to fuck me you would really need to take those off."
I was naked in no time and turned round to admire her figure.
She lay down on her side so we were facing each other and reached over to take hold of my cock.
I reached round to squeeze her gorgeous ass before taking a nipple in my mouth to suck.
Ruth's boobs aren't huge but to me they are just the perfect size. Big enough to grab in my hand and with large hard nipples which I loved to play with.
We stayed like that for a while, just playing with each other before I moved my hand down to her pussy.
I gently pushed her over so she was lying on her back and slipped a finger inside her.
She had let go of my cock and I moved closer so I could suck her nipples while fingering her pussy. My hard cock was rubbing against her thigh.
She closed her eyes and used her hand to start playing with her other nipple.
I slipped a second finger inside her after a few minutes and she moved her hand down and placed it on top of mine to make sure I was hitting the right spot as I fingered her.
"How many fingers is that?" she asked breathlessly
"Two at the minute." I replied "Do you want more?"
"Yes please."
I slipped a third inside her as her body writhed on the bed, practically humping my fingers like they were a cock.
She reached round to grab my cock and started to wank me off.
After a minute she let go of my cock and pulled herself away from my fingers.
She put two pillows behind me head, telling me to lie back, before throwing her leg over me and guiding my cock into her wet pussy.
"Oh that feels good," she sighed, before starting to grindmher body against mine.
She had her hands on my chest as she fucked me while I held on to her hips.
After a few minutes she leaned forward and held onto the headboard.
This made it easy for me to grab hold of her ass with both hands so I could really get going and pound her pussy from below. It also meant her boobs were swinging in front of my face and I took the opportunity to suck on them and bite her nipples.
I could tell she was nearly ready to have her first orgasm and I speeded up trying to help her along.
Just then we heard the door to the apartment open.
"Mum." Joanne called, just as Ruth was orgasming on my cock.
"Go away, we're having a fuck." Ruth shouted out between moans.
Now the layout of the apartment was such that our bedroom was right beside the front door. The girls bedroom was next, followed by the bathroom and then an open plan kitchen, living room and a balcony.
When we lay down earlier we weren't intending to have sex, we were just taking a break so we hadn't closed the door.
That meant that Joanne and Amelia were now standing at our door watching Ruth orgasm on my cock.
They were both a bit speechless and I don't think they knew what to say or do. They just stood there with their mouths open as Ruth climbed off my cock.
She lay back on the bed and looked over to the door "Did you not hear me?"
