Another story of frustration and denial.
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Stepping off the bus after a long day at school, Thomas slung his bag over his shoulders. The sun was just starting to set, the distant glow of the orange orb already halfway behind the horizon, and he let out a tired sigh as he made his way back. Not because he had just finished getting through all his midterms and his tests though he couldn't exactly say he wasn't happy about that, but rather because today just so happened to be one of the rare few days where their mother was stuck at the office working overtime. And so even with the promise of a quiet afternoon of nothingness and yesterday's leftovers still in the fridge, it was still with some amount of hesitation that he stepped past the threshold to close the door behind.
"I'm home!" he called out.
For a moment, he waited for a response. Not that he had really expected one, though that didn't mean there was nobody there. At least judging by the pair of shoes kicked haphazardly to the side, and setting them back onto the shelf where they belonged, he walked over into the living room to find Sarah curled up on the couch with a book in her hand. Romeo and Juliet, the title read, and he blinked as she tucked her knees underneath her chin. Quite normal really, like a cat sitting up in bed. The only problem was that as comfortable as that looked, it also gave him a perfect view of her panties up her skirt along with the smoothness of her bare legs.
Well crap. That wasn't good. Swallowing hard, he looked away. By then though the damage was already done, and as the heat rose up across his face, it was as if a small part of him just knew that he should have waited a little longer before coming in instead.
"You done staring?" she asked.
"Uh...," said Thomas.
"Or would you rather I pull them to the side so you can get a good look at what's behind?" said Sarah.
She reached over to turn the page, not even bothering to shoot him a glare, and Thomas shifted uncomfortably in place. Blue, why did she have to wear the blue ones today? Especially the light blue ones that seemed to match every last inch of her hips along with the gentle curve of her rear. A bit like a second skin as it stretched over the crease that ran down the very center, and a single glance at the tiny little bump at the top was more than enough for him to wince as he felt his member start to stiffen against the insides of his chastity cage.
"I, uh...," he said, "I thought you didn't like romance."
Another second seemed to pass, however, before Sarah bothered to answer the awkwardness of the question.
"Well, I don't," she said, "But unless you really want to see me being spanked for failing all my classes, then I suggest you shut up and let me finish my book report in peace."
"Oh," said Thomas.
"Or do I have to go over there and hit you again?" continued Sarah, "Just like the last time you tried to bother me when I was busy with my things."
Pausing, she looked over to stare rather pointedly, and Thomas grit his teeth. Briefly, his eyes gave in to the temptation again as they wandered back down between her legs. Why did she always have to be so difficult every time he tried to talk to her? Almost as if she was trying to make his life as hard as possible, and even if she hated it as much as he did every time they had to do something like this, that didn't mean she could just dump all her frustrations on him like he was some sort of punching bag. Where was the fairness in that? Like, weren't they supposed to be siblings? Brother and sister holding hands?
For a moment the mental image of it crossed his mind, the two of them smiling as they sat next to each other, and he felt like laughing. As if she would ever agree to something as stupid as that, let alone whatever else it was that normal families did. Like camping, or hiking, or not arguing with each other just because he happened to walk in on her getting changed.
He sighed again. It wasn't a feeling that he missed. Better get on with it then, before they end up having another fight.
"Right," he said, holding his hands up in surrender, "I'll leave you alone in a bit. Mom just wanted me to make sure that you did your exercises for the day."
To the surprise of absolutely nobody though, Sarah reacted to the information about as well as he expected.
"And why do you have to be the one to do it?" she said, "Why doesn't she just come and check herself?"
"Because she's still at work and won't be back until midnight," said Thomas, "Didn't you get her text?"
"Yeah, but that doesn't mean you can just look at my bits down there like it's nothing," she shot back, "Girls are fragile things, you know. You can't just treat them like that."
She blinked as she looked over at him again, her knees still pressed up against her chest, and Thomas very politely refrained from pointing that they were pretty much already halfway there. Or the fact that it wouldn't be the first time he had seen her naked like this either, and wasn't it just last week that she had been bouncing up and down in his lap with her pussy soaked through and his dick shoved all the way up her rear? No orgasm for either of them as usual of course, the overall time being still too short, though he did end up getting awfully close at the end. And against the memory of her sobbing as their mother made her bend over in front of him afterwards with her anus still twitching from the use, it was hard not to think about the disappointment of having his member locked back into its cage.
Closing his eyes, he took a deep breath. Today was Monday, which meant they still had another four more days left to go before he got to try again. An entire ninety-six hours of frustrating wet dreams as he tossed and turned in bed, and even then it wasn't as if he was guaranteed a release once they were there. Maybe a coinflip at best if the dice just so happened to land in his favor and he managed to roll either her pussy or her ass again, but anything less than that and the only thing he could really do was to wait another week.
Or maybe another two or three in this case if Sarah decided to be finicky again.
"Alright, I can respect that," he said finally, "It's fine if you want some privacy. Just remember to call me over after you're finished."