Joan was nervous but so excited, she had been having great sex with her son in law on regular occasions but today things were either going to go one step further or there would be chaos. Her and her lover had been sharing their fantasies about involving her daughter in their fun and today Joan was going to test that out. She had arranged for her other daughter, Kath, to look after her grandson Tom, pick him up from school etc, a job she often did. Therefore when Allison came home from work, there would be just the three of them. Joan went to her daughter's house just before 4.00pm. Andrew, her son in law, let her in and for a while they just stood kissing passionately.
"I'm still not sure about this Joan, I think it could ruin everything."
"Leave it to me, you know Ally and I get on very well, she'll be fine."
Joan's plot was simple; when Allison came home Andrew would persuade her to have sex, as their son was at her sister's house. In the midst of this Joan would make her appearance and hopefully join in. If Allison was too outraged or shocked, Joan would make her excuses and leave causing minor embarrassment but little else. That way her relationship with Andrew would remain secret.
Allison arrived home just after 4.00pm and Andrew explained that Kath was looking after Tom for a couple of hours. He grabbed his wife and started to kiss her, squeezing her arse as he did so.
"Maybe we can use the time productively," he said to her.
"You're bad, it's the middle of the day," Allison said.
Andrew lifted her skirt and started to feel her arse and rub her arsehole through her panties, a trick that always got her horny.
"What if someone comes round," she said.
"Like who?"
"Kath or Mom are going to bring Tom back soon."
"Not until after 7, I told you, that gives us a couple of hours and the way I'm feeling I'll only need 5 minutes," Andrew said.
Allison laughed, "Huh if we're going to bed I want everything, not just a quick hump."
Andrew worked his finger into Allison's panties and into the opening of her arse.
"Do you want my cock up there?"
"Mmmm but after you've got it nice and wet."
He took her be the hand and they went to their bedroom. They stripped off and lay on the bed, kissing and touching each other lustfully.
Joan stepped out of her grandson's bedroom and stood close to the door of the master bedroom. She could hear her daughter groaning as Andrew did things to her which as yet she couldn't see.
"Yes lick me darling, tongue my arse," Allison moaned.
Joan took another step and into the doorway of her daughter's bedroom.
Her middle age daughter was lying face down on the bed, whilst her husband had his face buried in her arse, obviously licking at her arsehole.
The scene was so erotic and Joan found herself rubbing her own pussy through her panties under her skirt.
Andrew looked towards her and lifted his face and smiled and then went back to Allison's arse.
"Put your friend up there first," Allison said.
Joan watched as Andrew reached for a slim silver vibrator which he started to rub up and down Allison's bum crack.
"Fuck my arse with it," Allison moaned.
Andrew inserted the slim vibrator into Allison and switched it on to slow revs as he pushed it further into her.
Joan continued to masturbate as she watched staring at the Vibrator going in and out of her daughter's rectum.
Then in a wild fling of passion Allison flung her head round, groaning wildly as she did so. Just 5 feet away stood her Mom, with her skirt up around her waist and her fingers buried deep inside a pair of very small black lace panties.
"Fucking shit," Allison said and she sat up.
Andrew tried to be amazed as well.
"Sorry," Joan said, " I let myself in and heard you upstairs and ..... well came in here."
Joan pretended to look sorry and pitiful, but the sight of her daughter sitting naked in front of her was just amazing and she knew she wasn't doing a very good job. So she changed tact and looked straight at Andrew's hard cock and licked her lips.
" But Mom, you shouldn't have come into our bedroom."
Allison then followed her Mom's eyes to her husband who was rubbing his cock.
"Andrew, what the fuck?"
"Sorry but you naked and your Mom watching us and obviously playing with herself, well it is kind of erotic."
Joan still stared at Andrew's cock making it obvious to her daughter what she wanted.
Andrew grabbed the vibrator that had shot out of Allison's arse when she had jumped up and started to rub it against Allison's arse again.
Allison turned to her husband who was still jerking himself off with his other hand, "You're naughty," she said.
Allison could feel herself succumbing to the lust within her again as the tip of the vibrator pierced her arsehole again. So her Mom was in the room too, so what? all she wanted was to be arse-fucked.
"Can I touch his cock?" Joan said as she ventured further into the bedroom.
Allison looked at her Mom and felt sorry for her, she probably had not had sex in years and women in their 60's didn't get much of a chance of re-kindling any passion.
Allison nodded and was shocked at herself, in fact now the thought of watching her Mom play with her husband's cock made her feel a bit giddy.
Allison curled herself round as Andrew continued to fuck her arse with the vibrator, so that she could see him sitting on the side of the bed.
Joan reached out and started to stroke Andrew's cock like it was the first time.
"It's so hard and hot," Joan said.
Allison watched as for the first time another woman played with her husband's cock. She watched as her Mom's hand gained momentum and she was soon moving her hand up and down his shaft very fast.
"Oh yes Joany, wank me off darling, make me cum," Andrew panted.
"Suck him Mom," Allison said, desperately now wanting to watch her Mom's mouth take his cock.
Joan knelt down and took Andrew's cock into her mouth, not for the first time of course, but Allison didn't know that.
Allison sat up again to watch better and as her Mom gave her husband a long blow job, Allison found herself finger fucking herself.
Joan didn't want Andrew to cum yet, so she released his cock and sat on the bed and started to kiss him, mouths open, tongues entwined. As she did this she managed to strip her clothes off, down to her bra and panties. She turned to see her daughter masturbating whilst watching them. The sight nearly brought Joan to orgasm, Ally was sitting there with 2 fingers pushed deep inside a totally bald cunt and also groping her right breast with her left hand.
"I want to watch you suck him darling," she told her daughter.