In July 2007 my wife, Liz and I plus her parents, Georgina and Ken flew to Majorca for a week's holiday together. If you have read my first two stories you will know that for a few months prior to this Georgie, as my mother in law likes to be called, and myself had been having an affair. This had started late the previous year (for all the details read Mother in law lust 1 & 2) and after a gap had continued with us having sex virtually every week for a few months.
We'd had a few holidays with Georgie and Ken before, but this was the first one without any of our children and had been a late idea by Georgie. She had actually suggested it to Liz without my knowledge at the end of May and Liz had thought it a good idea, but had told her Mum that she didn't think I would be up for it. I seemingly gave the impression that a week with the in laws and especially Liz's Mum was the equivalent of a week in a Russian gulag. (An act I was very proud of when Georgie told me later that week after the holiday was booked). On the day Georgie suggested it, she told her daughter to see if she could convince me and that to make the whole thing more appealing her and Ken would pay for a villa if we could rustle up the money for our flights. When Liz mentioned it, my initial reaction was one of trepidation. All I could think about was a week in the sun with my horny mother in law but not being able to do anything because her husband and my wife would be with us all the time. I did however agree because I just wanted to spend a week living with Georgie, in the hope that I might get something. In fact as the time moved towards the holiday, I got more excited especially about having a quick fondle or a kiss under Liz and Ken's noses whilst Georgie started to worry that Liz or Ken would suss us out and everything would be ruined.
We managed to find a vacant villa in Sa Coma on the east side of the island and got some cheap budget flights from Stansted Airport.
Two days before we left, Ken played a round of golf and Georgie asked me round for a quick shag. Afterwards we lay in her bed and she asked me if I would fuck her on holiday if we got the chance.
"I think the temptation of being around you for a week is going to be too hard to resist," I told her.
She giggled and said "We'll have to be careful, but the more I have thought about it over the last couple of days, the more I have thought I'd love to have sex with you when those 2 are around."
"Like how?"
"Oh I don't know, but maybe in the bathroom whilst they are outside by the pool or even in the lounge when they are asleep in bed or even us two going off for a walk along the beach and you screwing me in the sand dunes."
I looked down at my naked mother in law. It was incredible to think that this woman who was almost 65 and who for many years had acted like a stereotypical grandmother was talking this way.
"You want me to fuck you outside where Ken and Liz might not see, but someone else might?" I asked.
"Mmmmmm a nice fuck on a hot beach and if a stranger wants to watch so what, as long as Ken and Liz don't find out."
This conversation really gave me the hots and I couldn't wait to get to the villa.
The villa was great, three bedrooms and a small private pool set about 200 metres or so from the beach and just a short walk into Sa Coma. The first full day was strange for me. The hot weather always does something to Liz and the first morning I woke up to her stroking my cock. She was feeling as horny as hell and wanted me desperately. And even though I made some quip about her parents being in the next bedroom that just seemed to make her extra horny.
"I don't care if they hear us I just to want to feel your cock inside me."
So that morning I ended up fucking my wife once in bed and then a little while later fucking her arse whilst we were in the shower together.
Georgie obviously had heard us and later when we were alone in the kitchen, she grabbed my cock through my swimming shorts and said,
"Has this been inside my daughter's crack this morning?"
I just nodded feeling a bit sheepish, like I had let Georgie down but she then gave me a wicked grin and said,
"Was it good babe, better than me?"
I looked around to make sure we were alone and leaned down and kissed her lips,
"No, nothing beats fucking your lovely pussy."
She squeezed my cock, which was quickly getting hard and said,
"Yes you prefer older pussy don't you, however by the sound of it you did it twice this morning or was Liz finishing herself off in the shower? No! didn't think, so therefore it can't have been too bad."
"Well in the shower was a bit different," I said "We did something Liz likes to have every now and then."
Georgie raised her eyebrows, "Oh I'm intrigued now and what is it my little girl wanted in the shower?"
I kissed Georgie again and had a quick squeeze of her tits through her top and swimsuit.
"Liz likes it up the arse sometimes, in fact holidays bring the worst out of her and that is when she demands it most," I said.
Georgie put her hand inside my swimming shorts and continued to stroke my now stiff cock.
"So this little baby has been up my daughter's bum this morning and at other times?" Up to this point I hadn't told Georgie about some of the things her daughter and I did in bed, wanting her to think that the sex I had with Liz was just like the sex I had with her. This consisted of some oral sex plus some straight fucking which at that time involved only 3 positions, me on top, her on top and her getting it from behind.
"Well, well," she continued, "So why haven't I been told this before?"
"I'm not sure really, didn't want to shock you I suppose," I said.
"I'm your mother in law and we are screwing, how shocking is that,"
"I know but I want to keep what we've got precious and don't want our sex sessions to stop, so I didn't want you to think I was getting some stuff from Liz that I wasn't getting from you."
Georgie released my cock and said "I might be getting on a bit but I'm sure I am fit enough to try a few other things in bed."
"So you fancy a few more naughty things?" I asked.
