Maggie phoned Ruth, and Maud, and said she'd spoken to her grandson Ron.
At first he was apparently, a bit unsure, as he loved his grandma very much, but she had convinced him it would make no difference to their relationship.
She also told him of her sexual relationship with Ruth, and Maud, and it excited him, and yes, he was keen to have sex with them, especially as they were older aged, someting he loved, after all he was having sex with his grandma, who he lived with anyway, and helped with her finances.
Again, it would be on a Saturday, maybe overnight because he had a job, and had to report in on Monday morning...So, Maud, and Ruth got ready, cleaning the place a bit, the usual, clean bedding, vacuuming, and washing.
When Saturday arrived, they dressed in skirts, tshirts, stockings, and suspenders, to tease Ron, as they had done with Maggie.
She arrived with Ron at midmorning...Maud, and Ruth were pleased...He was handsome, dark hair, shaven, and looked quite muscular in a pleasant way.
They greeted them, and straight away Ruth detected a glint in his eyes...there would be fun ahead, she was sure.
Maud made some coffee, and they sat chatting about normal things at first...about his job.
He was something high up in aircraft design, which was impressive at 22 years of age.
Maud made the first move after about half an hour, and Maggie knew what was going on.
She parted her legs slightly, lifting the hem of her skirt hardly noticable, so that it lay across the tops of her knees.
Ruth noticed his eyes drop, and in that position, he could easily have seen her stocking tops under the thin material of her skirt.
When Ruth did the same, his eyes went back, and forth, trying to see up both their skirts.
"Do you like looking up our skirts?" asked Maud.
"Yes I do," he replied boldly.
They both opened their legs wider, and lifted their skirts, so that he could see their knickers.
"M'mmmm, very nice," he said.
Maggie joined in, and exposed her stocking tops as well.
"You've got a heck of a lump in your trousers," said Ruth.
Maggie looked at it, and covered it with her hand, and squeezed it.
"He's got a nice cock," she said, smiling, and reaching down with her other hand, and unzipped his trousers, and pulled down the top of his underpants, releasing his erect penis...it was all Maggie had said it was, a good 8 inches, and as she pulled back his foreskin, exposed a large purple knob already glistening on top with precome.
Maggie leant over, and took the bulbous head in her mouth, giving Ruth, and Maud a show, as she rubbed his penis up, and down...he made no move to stop her, but after a couple of minutes he had to stop her.
"Not yet, I don't want to come yet, we've only just arrived," he said.
"Leave it out though," said Ruth," It's a long time since we've seen such a nice cock, let alone sucked one."
Ruth, and Maud both lifted their skirts right up, and opened their legs wide, followed by Maggie doing the same.
Ron's penis bobbed with excitement, but he didn't touch it, or he would have come, he was so aroused.
"So, what have you three been getting up to?" he asked," grandma told me you'd been having very intimate sex...I'd never have thought it of grandma, but I'm not upset, she's a very sexual lady.
"Well," said Ruth," we've done most of the things lesbians do, plus a few fetishes of our own."
"Like what?"
"One thing we like is wet fun," said Maud.
"You mean peeing?"
"Yes," replied Ruth.
"Really?"
"Yes, anything to do with pissing," said Maud.
"Sounds interesting," said Ron," and talking dirty is something I like...using naughty language."
"Well," said Ruth," I hope you're up for fucking all three of us."
"I hope so too," he said.
"So, let the fun begin," said Maud.
Fortunately, the sofa, and armchairs were protected, so when Maud said that she'd started, and done a small trickle in her knickers, she wanted to show Ron...She stood up, lifted her skirt, and bent forward, to expose the wet gusset, which showed well, in the pale blue knickers she was wearing...the back of her skirt was also wet.
"I'm sorry guys...I was going wait so we could introduce Ron to our piss fun, but I needed to go," said Maud.
"That's alright, I'm finding it exciting already," said Ron," do you often wet yourself like that?"
"All the time," said Ruth," when your grandma came last time, she wet herself...didn't she tell you?"
" No...she never mentioned it."
"That's because we told her not to...we wanted to break it to you slowly, but it doesn't really matter now, as you seem to like the piss idea," said Maud.
"Too fucking true...I love it, and grandma being into it as well will certainly change things back home."
Maggie sat smiling, a big grin on her face.
Ron's penis had softened a bit, and he said that he needed a pee, after the drinks he'd been having.
"Let's go outside," suggested Ruth," and we can watch you pissing...no one can see us."
They led Ron to the back door, and stepped into the garden.
His penis already out, Maggie held it for him as he started to pee a long golden arc.
"Oh! Nice," said Maud, as she moved, and stood in front of him, his urine gushing all over the front of her skirt...when it was soaked, and dripping onto the grass, she lifted it, and the final spurt of pee sprayed over the front of her knickers, and down her legs, soaking her stockings.
"So this is what you three have been getting up to," said Ron.
"We haven't started yet," said Ruth, as she bent forward, and took hold of his softening post pee penis, which immediately became hard again, and put it in her mouth, still dribbling urine.
"Oh! Fuck, this is so naughty," he said.
"You like it?" said his grandma.
"M'mmmm...yes," he replied.
