I had been separated from my wife Claire for about five years, we had never bothered to get a divorce as we were still very much friends and saw each other regularly. My son Dan who is now twenty one had chosen to live with me, and my nineteen year old daughter Alice lives with Claire.
I stay in contact with my ex wife Claire as we both wanted regular contact with the children, we have a very good relationship and take the children away on holiday every year, we often end up fucking as we are both single and horny, it was that old scenario that we get on better when living apart.
My name is Jason but everyone calls me Jay I'm forty two years old, I've always kept fit and still try to exercise on a daily basis, I work as a paramedic with the ambulance service.
Claire and I split up because we just wanted different things in life, there was no animosity and the divorce was amicable. Claire who is forty one has a sister aged forty three called Jenny who lives a five minute walk from my house and she has two daughters called Cath and Debbie, Cath is eighteen and Debbie nineteen. Both the girls went to a school for children with learning difficulties, they both have autistic traits. Jenny is also divorced since her husband walked out on them a few years ago.
Jenny was the reason for her marriage breakup as she had a string of affairs, she always dresses very provocatively and enjoys showing her ample cleavage. She regularly flashes her boobs in bars and clubs, and her husband couldn't take any more of her antics. Many years ago Claire and Jenny had been on a hen night and Claire brought Jenny back to our house, they were both very drunk and horny, Claire suggested having a threesome, and being as I was in my early twenties I of course agreed, we all ended up in our bed and I paid more attention to Jenny that night, the sex was amazing and for about three months after that I secretly fucked Jenny quite a few more times. Claire found out, but luckily for me she gave me a second chance and I never cheated on her again. Claire and Jenny had a big fall out over the affair but have made up over the years.
Claire and Jenny were both blessed with huge boobs, they obviously got them from their mother who has massive tits, big boobs seems to run in the family as Cath and Debbie both have a fairly big pair too.
Since Dan, Cath and Debbie left school and being of a similar age the girls spend a lot of time at our house with Dan and me. They don't seem to have any friends outside of the family. Jenny would often send them round to us when she wants time alone with her latest beau, and they often stay overnight when she is staying out for the night. Even though the girls are old enough to be on their own they need caring for because of their autism.
Both girls are extremely shy in public and don't talk to anybody, but amongst family they are a lot more talkative, Cath is more outgoing than Debbie and is the ringleader when they are getting into mischief.
They are both pretty girls, Debbie has black hair and brown eyes, and Cath has dark brown hair and green eyes, both have quite big boobs and they are a little bit curvy but perfectly proportioned.
They are innocently flirtatious and ask a lot of questions about sex. Their mum told me that due to their autism they have no filter and just say whatever is on their mind. They seem to be very sexually frustrated and Claire told me that Jenny has bought them both a sex toy as she could hear them masturbating most nights after bed time.
Jenny had asked me if the girls could stay for a few days as she was going on a hen weekend, I told her it would be okay, so on Friday afternoon the girls arrived for a three day stay. Claire offered to come over and help Dan and me if things got difficult, the girls had stayed overnight many times but not for three days at a time.
I took the girls bags to the spare room and they followed me, there is a single and a double bed in there, I put their bags on the double bed and left them alone to unpack.
Dan was at work, he works as a trainee electrician with a local firm, so it was just the girls and me for a few hours, I was sort of dreading the time alone with the girls but knew it wouldn't be for long.
I was in the kitchen when the girls came downstairs after finishing unpacking their things, "would you like a drink?" I asked.
"Yes please uncle Jay, could we have some coffee?" Replied Cath.
While the kettle was boiling Cath hugged my arm rubbing her boobs against it, I'm sure she knew what she was doing and there was a stirring in my pants. "Thanks for letting us stay with you and Dan." She said.
"You're welcome." I replied not wanting to move away from her boobs rubbing against me.
As usual Debbie was silent, then the kettle clicked and I moved to pour the hot water into the cups. "Do you take sugar Debbie?"
"Yes, we both take one please." Answered Cath.
It was obvious that Cath spoke for Debbie and seemed to be the dominant sister even though she is younger. "Come and give uncle Jay a hug." Cath demanded of Debbie.
Debbie took my right arm and Cath took my left arm, wrapping their arms around me they hugged me tightly, now I had two big pairs of boobs rubbing against my body, the stirring in my pants quickly became a full blown raging hard on, I felt that they knew exactly what they were doing, after a minute or so they released their grip on me, as they moved away I felt a hand very quickly stroke my dick as our triple hug ended, I was unsure who had done it but I assumed it was Cath. They both acted as if nothing had happened so I chose not to say anything.
As we sat in the living room and chatted Cath was showing a good bit of leg as she continually moved around the sofa, she dressed in short skirts and skimpy tops while Debbie dressed a lot more conservatively. I have to admit that I kept looking at her in the hope of seeing up her skirt. I felt Cath knew what she was doing and was deliberately teasing me.
Cath whispered something to Debbie and they left the room, I heard them upstairs in their bedroom and after five minutes they came back down to the living room.
Cath said to Debbie "go on, you say it."
"No, I'm scared."
"Just say it, you said you would."
"Okay, uncle Jay, who has got the biggest boobs, me or Cath?"
I replied, "that's the first time you've spoken since you got here and you ask me a question about your boobs."
"So, what's the answer?"
"Well, I can't see them properly because you've got clothes on."
Cath and Debbie started whispering but I could just about hear them, Cath said to Debbie, "let's show him, I will if you will."
"Okay" said Debbie.
They both lifted up their t-shirts and for about two seconds I saw two magnificent pairs of tits. The girls giggled as I sat there open mouthed and stunned into silence.
I worked out that they'd planned this, when they went upstairs earlier it was to remove their bras.
"Wow, they're both amazing but I can't tell who has the biggest because it was such a quick flash."
This time Debbie stood up and said "come on let's do it again" to Cath, that surprised me as Cath is usually the forceful one.
They stood right in front of me side by side then Debbie slowly lifted her t-shirt taking her heavy tits with it until boing, they fell from the bottom of it with a big bounce and wobble. Then it was Cath's turn, she done the same, as Debbie stood there with her big tits on display Cath released her tits from her top and they fell out and bounced again her body.
"Ok, take your tops off so I can see better."
They both removed their tops and stood in front of me, "now lean forward so I can see them hang."
The girls done everything I was asking of them, my dick was already hard and easily noticeable, as they leaned forward I could see both of them stare at it.
"Can I touch them." I asked.
