All characters engaged in sex are over 18.
*****
In the morning, Kelly sat up and stretched. Sarah lay on her back, daydreaming. It was Monday -- their day off because the markets were closed. Her brother Rob snored slightly. Kelly said to her sister: "I had a dream last night. The bed was, not shaking, but sort of rocking. Then you said 'he just fucked my bum' or something like that. She looked at her sister, who smiled back.
"It wasn't a dream, was it?"
"No."
Awake now, Kelly wanted to know. Rob would wake soon anyway. "What was it like? Did it hurt?"
"Yes, it hurt at first but once we started, it was very nice."
"
Very nice?
Still I bet you've done that before, though."
"Nope. First time ever in my bum."
"Really? Oh hey! That means your brother just sorta took your virginity."
"I guess so!"
Rob stirred, stretched, yawned. "What you two talking about?"
Kelly lay on her side, reached for his cock and squeezed it: "Did you really put this in her bum last night?"
"Oh. That. Well, yes I did little missy. Reckon if you behave like a good girl oughta, mebbes I might put it in your'n too one day."
His attempt at a klondike accent was pathetic and they told him so. It erupted into a tickling match, until Kelly said "Wait! I gotta go pee. And don't you
dare
stop me. I'm not changing the sheets!"
Rob and Sarah looked at each other and shrugged. Kelly edged out of bed, saying: "What?
What?"
Her siblings grabbed her, pulled her back onto the bed. Rob held her while Sarah tickled her. She protested, fervently at first: "No! No! The sheets."
It was Sarah who argued with her: "It's Monday. Need changing anyway."
"But the mattress!"
"Has a sweat-sheet on it. Won't matter."
Momentarily Kelly stopped wriggling, Rob eased off his tickling: "Any chance of appealing to your better sides to maintain my dignity?"
At the same time, Sarah said "Nope" while Rob resumed tickling, saying "Fat chance."
"Oh no! Fuck! All right, all right. What you want?"
Rob gestured with an open palm towards Sarah, giving her the honour of choosing.
"Oh, um. Yeah I know. Lay back and piss in the air."
"That all?"
"Well, now you mention it, make sure you piss on your own tits."
"You guys are perverted..." But she lay back, wriggled off her pyjama shorts, and went to get her top off too.
"No, leave that."
"Jesus, who put you in charge?"
"You did. It's that or tickling."
Kelly would have been happy with either, but wanted to please her -- increasingly kinky, older sister. She made a show of arranging her cotton top flat against her chest, bent her knees to plant her feet on the bed, and spread her pussy apart with her fingers.
Her first couple of spurts went straight up, hitting her thigh and hand. She adjusted, pushed and grunted out a small stream that arced up but fell short, on her belly. The fabric stuck to her, turned transparent. "This is impossible."
"Try!"
"You're still perverts...Nnngh"
She pushed, and was rewarded with a hissing stream that went high in the air and landed on her left breast. Rob watched, fascinated, as the fabric became transparent. Sarah was idly stroking her tits as she watched. She'd been naked all night, taking what warmth she needed from her brother's body.
Kelly tried again. Her stream was strong, it kept going, but she couldn't aim to reach her tits. It faded out. Her belly was drenched, the fabric transparent, crinkled over her tummy and one breast that she'd managed to wet.
Sarah knelt forward on the bed, got beside her sister, saying; "I'll help."
She held her pussy apart, aimed, and pissed on her sister's tits. It splashed, hissed, sputtered. Kelly giggled like a maniac, Sarah merely said: "Got you back for pissing on me in the bath."
"That was ages ago -- you been looking for revenge all this time?" She was laughing though. Rob watched as Sarah's pee spurted, dripped, then stopped. While idly looking at his little sister's tits through the drenched cotton top, he realised the reason they were so comfortable, so free with each other's desires was because it was always
fun.
Sex between them was always just good fun. No hassles, no worries. It made him smile.
Kelly got up, dripping wet, pulling the sodden garment away from her body. "OK, you had your fun but I'm not cleaning that up." Rob knew when to retreat and they ran off leaving Sarah with the mess. She yelled after them: "At least make the bloody coffee, then!"
It rained. The industry had the day off, there would be no buyers or deliveries. Kelly got playful and went outside in the rain, stark naked, dancing like a harem queen. Sarah and Rob watched from the porch, sipping hot coffee.
"Rob. She's still young at heart. I'm almost 35, you're what, 24? We've both had, er, normal relationships. I'm scared for her though. She's never known anybody, like, that way, except us. Are we fucking up her head for the future?"
"Yeah, worried me too. But you know what she told me yesterday?"
"No, what."
"OK, when she tells you, act like you didn't know. She's keen on a bloke at Dixon's. He asked her out."
"That's great! Why did she tell you, though?"
"She asked if I'd mind -- she'll ask you as well."
"What did you say?"
"I told her I wanted her to be happy, and if he, or anybody else, made her happy that was enough for me."
"Good answer. She OK with that?"
They watched her gyrate and dip, then wash her hair in the torrent.
"Yeah. She said: 'What about the sex? Will you miss it?' And I said 'of course, but it's your choice. Yours and yours only'."
"Rob, come here and give me a hug." He did. She planted a big kiss on his forehead then sat on his lap. "So, what if you met a girl? Would you still, wanna, with me?"
"I don't really know. Won't know unless it happens. But, well, I love you, and I love her, like sisters. But the sex..."
"The incest..."
"Yes, the incest. That's different. It's fun sex, free sex. None of us is ever gonna plan out a baby nursery or have to take little Johnny to the cricket, so it can stay, well, just fucking."
"Just fucking?"
"Yeah."
"You have a wise head on your shoulders, mate. HEY KELLY! HOW COLD IS IT?"
"NOT COLD AT ALL. GET NAKED, JOIN ME."
Sarah got off her brother's lap, slowly teased as she stripped right there, arms length away, then turned, slapped her buttocks at him, and went down the steps to dance naked in the rain with her sister.
Rob watched. Sarah rinsed Kelly's hair, then turned so Kelly could do the same. Through the din of the rain on the ground and pelting the tin roof, he heard Sarah say: "Are you good and clean?" Kelly nodded. "Good!" Then she grabbed her, tripped her and wrestled her to the ground. Kelly squealed, but didn't resist as her sister sat astride her thighs, bent, and kissed her lips tenderly. She arched her neck to return her kiss, mud sploshing her sides, coating her back, her ass.
Rob sipped coffee and watched them as easily and naturally as if they were washing the ute. Kelly tried to tip Sarah over, into the mud, but wasn't strong enough. Sarah kissed her mouth again, then scooted down to kiss her nipples. Kelly took the opportunity and wrestled her over. Now Sarah sloshed in the red-brown mud, it coated one breast, but she let her sister get on top.
Kelly sploshed the puddle onto Sarah's breast to wash it, then let the rain finish the job. Sarah looked up, blinking as the raindrops hit her face. Rob watched, but couldn't hear.
Sarah was telling Kelly how beautiful she'd become. How any man would be lucky to have her. Kelly said: "He told you, didn't he?"
"Oh sorry, don't be angry at him. He... We both love you and want only what makes you happy. With, or without us. OK?"
Kelly pulled her sister up and was sitting on her lap, hugging her. The rain washed glad tears from her eyes. Kelly said: "Sarah, I don't know if I'll want Rob, like, to compete with Jason. But, well, Jason doesn't have tits or a pussy. Like you do."
Sarah understood. They made a sister's pledge not to say anything to Rob, Kelly needed to be sure one way or the other. Then she delighted Sarah by saying: "Of course, you can fuck him as much as you want.
I
won't be jealous!"
They laughed, stood, washed each other down in the pelting rain. Still Rob watched his sisters, but somehow he knew something had changed.
Without words, over the next few days Rob knew to leave Kelly alone, make no sexual advances or caresses. Sarah confirmed it, telling him once, "Thanks Rob. Let her figure it out."
Unusually for the three of them, each left the other alone apart from work stuff. Days passed. Kelly went on four dates with Jason and spent a lot of time with him. They knew him, he worked for one of their distributors. He was a good lad, hard-working and honest.
Kelly didn't say much, but Sarah took her aside for a big-sister chat. Rob knew his place and stayed well away.
"How's Jason?"
"He's good. He wants me to go to Flanagan's on Saturday for the dance."
"You going?"
"Maybe. Probably. But..."
"No secrets?"
"Well, I wanna let him, y'know, fuck me. But it feels like, I mean, I'm nervous."