All characters engaged in sex are over 18.
Robbie had many questions, secrets, desires. He was sure his sisters did too. He ran a catalogue of what they liked. Sarah loved having her nipples tweaked. She loved having a finger in her bum, especially when she came. Kelly liked that too. It seemed Sarah liked it when Kelly had peed on her. They both liked having his cum on them, both liked to swallow it too. Kelly just
loved
having her pussy licked, probably as much as being fucked. But Sarah saw it as foreplay -- for her a cock in the cunt was the real thing.
And what about him? He seemed to like everything. Anything they did with him, to him, or for him was OK. Perhaps it was
him
who had no limits? So he ran through all sorts of scenarios, and the only taboo he had was poo. But that left all kinds of things he might enjoy. But for now, he wanted to see how far his reawakened pee fetish would go.
On a rare cool summer evening, they sat on the porch sipping beers. He got up to get more. Sarah asked: "Where you going?"
"To get more beers. Why?"
"Oh. Thought you might be going for a piss."
He got the beers and while walking back, his brain finally clicked. Why had she been wondering if he was going for a leak?
He asked her. "Oh. Kelly and I want to ask you. That is, we both wanna hold it while you piss."
He laughed: "Yeah, OK. No worries. You want me to piss on you, or...?"
"We haven't agreed. I want to try it, Kelly's not sure. Right, Kel?"
"Well, I want to try it too but I, um, I don't want it on my face."
"How 'bout you Sair? You want it on your face?"
"Maybe."
His cock stirred in interest. So he played their game: "All you have to do is ask."
Sarah smiled at his joke, and said, "I want you to piss on my tits, that is, on my shirt. And on my knickers. Kel?"
"And I want you to piss on my bare tits, but
not
on my face."
"Not on the face, got it. Anyway, if you're holding it you can aim it wherever you want."
"Which is why we want to hold it," Sarah said, "Cos we don't trust you!"
Rob put his beer down and leapt across the distance between them, setting about her ribs with tickling hands. She squealed and fought, kicking, but secretly she loved it. "Wait, stop! I'm trying to save it."
He stopped. "Save what?"
"I hadn't finished my request. I wanna pee on you too. Actually on either of you. Shit, I wanna pee on someone through my panties. Like a naughty little girl that couldn't hold herself. There. I said it."
The other two laughed. Kelly said: "You know we'll do anything for you, right? Jeez Robbie, look how she's blushing!"
Sarah tried to compose herself while she drank more beer. She knew she'd almost wet when Rob tickled her, so she was close but she didn't want any 'stage fright' -- she wanted to be desperate. That was part of the fantasy. She was the rule-maker, the decision-maker, the leader. So she just wanted to not have any control. Like when they fucked, especially when Robbie 'took' her like he sometimes did. He liked to catch her in the shade of a barn or shed, take her from behind quickly.
Whenever she heard footsteps, it made her wet. In case it was him, with a hardon. She would tell him so soon, but there was time for that. Meantime she began to wiggle in her chair.
"Look Rob. She needs to go."
"Not yet," said Sarah. "You ever hold it Kel? For fun, I mean?"
"Yeah, sometimes. Although -- can I tell her Rob?"
"What?"
"At the supermarket?"
"Course you can. No secrets, remember?"
Sarah looked shocked: "You pissed in a
supermarket?"
"No, of course not. I needed to go really bad. Rob had gone off to get the chook food. I was dancing and wriggling next to the ute, in the car park. When he came back he saw me and told me to go back inside and find the loo."
"And then
she
said, what was it? Oh yeah: 'Shut up and get in the car. I'll pee when and where I want to!' Wasn't that it?"
Sarah's discomfort grew but she wanted to hear the story. Kelly went on: "About ten minutes later we're about to turn into Golden Square. Ironic, really. Anyway, Rob drives over the speed hump and I lose a bit. So I clench my hand in there, you know what I mean, and sat on my hand. Anyway, we leave Golden Square and we're on Lassiter's Track."
"Oh shit Kelly! All those bumps!"
"Yeah. So, I can't stand it after a minute or so but we're still in view of the main road, where it runs parallel."
"So what did you do?"
"I tell Rob to pull up. He stops, I open my door so I can't be seen from the road."
"And?"
"I pissed like a racehorse. Didn't even get my jeans right down. Just pissed through my knickers, into my jeans. I think I pissed for, what do you say Rob? Ten minutes?"
He laughed: "Hah hah. Not quite. Wish you had. I barely had time to get my cock out."
Sarah was intrigued now. Her hand was between her legs to hold in her pee, now its contact was getting her horny too. "Then what?"
Kelly edged over to her sister, stood behind her, bent low to whisper in her ear while her hands rummaged under Sarah's top to find her nipples: "I sucked his cock while I pissed."
"Oh!" Sarah moaned, leaned her head back onto her sister, loving the feel of her hands, the growing desperation of her bladder and now her pussy too, all the while picturing her little sister sucking their brother's cock while bent over to wet herself.
Sarah remembered one of her rare girl-on-girl sessions with Jenny -- her former husband's sister. Jenny had told her about cumming and pissing at the same time. Now she understood and wanted to try it. She unbuttoned her jeans, scooted out of them, then put her hand inside her panties. Rob watched as she began flicking and rubbing her clit. She was edged onwards by her sister's knowing manipulation of her boobs. Kelly was whispering in her ear. Rob couldn't hear, but she was saying: "You are one dirty bitch, Sarah. Your innocent little sister..." Sarah laughed then cut herself off for fear of wetting too soon. "...Your innocent little sister is playing with your tits while your brother watches you masturbate. And, you dirty girl, you're gonna piss yourself, aren't you?"
"Yesss."
"Yes. You're gonna piss all over the place, in your panties, while you masturbate for your brother. He's going to watch you cum, and piss. Open your legs for him. Let him see properly."
"No, If I do I'll..."
"Do it anyway. You like him seeing it don't you?"
"Yes. Oh yesss."