Cindy smiled as she stood up from her bedside. "Oh, I have a lot of work to do." She lifted the phone to her mouth, "Dress me into something comfortable." A soft giggle came from her mouth when she looked down to see a perfectly fitting pair of leggings and a gray tank top. "Perfect."
Cindy carefully rounded the corner that led into the hall. This app was no good if Brielle got the jump on her and left her without her phone. So, Cindy decided to go on the defensive before taking her revenge.
"First: whenever Brielle tries to put on her tough girl act, her popular girl act, her bully act, or anything similar, she fails miserably, whether I'm her target or not, and completely wimps out about it, no matter how much it embarrasses her to do so. Second, mom won't punish me anymore; anything I do that's worthy of punishment, my mom will spank Brielle for, and come up with a reason for why Brielle deserves the spanking." Cindy was getting giddy as the text filled the screen.
"Let's see how these changes add up before I get ahead of myself with too many new rules." Cindy thought to herself, tucking the phone into her side pocket and tip-toeing into the hallway. Without fail, even with her footsteps near-silent, Cindy heard Brielle's door swing open and felt the warm fingers wrap around the waistband of her panties. Except this time, Cindy simply smirked.
"Glad we could have part two of our personal morning so soon, dork." Brielle said in her typical stuck-up pretty girl voice. Usually this is the part where Cindy would be put in a bra-connection. But not today.
"Me too! I think it'll go way better this time!" Cindy smiled. Brielle scoffed, and as Cindy felt her older sister prepare to tug, just as quickly as she had felt them, the fingers slipped away from her panties, leaving them in a perfectly comfortable position.
"Ah!" Brielle squeaked. Cindy turned to see the pretty brunette face-first on the floor, her knees propping up her large posterior, clad in yellow panties with pink hearts. "Nice touch." Cindy thought, patting her phone. Cindy broke up in laughter at the sight as Brielle embarrassingly scrambled to stand up, her far-too-girly panties obviously far too tight as well, wedged firmly between her big cheeks as they wobbled around.
"So, how about that personal morning, huh sis?" Cindy smirked. Her smirk turned into a wide, smiling gasp as Brielle turned around, tears in her eyes. "Stop looking at my panties!" Brielle cried, using her hands to attempt to cover her plus-sized rear end, only resulting in the top half of her bottom tumbling down once more, smushing her face into the floor as her bottom stuck up, resulting in a pathetic and startled "Ah!" as she impacted the carpet floor.
"Who's the dork now, cry-baby?" "I'm not a cry-baby! I was on the cheer squad!" Brielle said with only a hint of her usual confidence and conviction, now stumbling through her over-reactionary tears as she tried to stand. "Jeez. This is kinda cruel. I think an amendment is in order, sissy." Brielle blushed, but failed to find fitting words for any sort of comeback.
Cindy pulled out her phone, "Brielle will still be a crybaby, but she won't be so sad and mopey; just absolutely mortified." Cindy smiled, hoping that would make things a bit less cruel. And much more fun to watch.
As she slid the phone back into her pocket, she saw the change take effect as Brielle wiped away her tears, her cheeks filling with blush as she finally stood up, her black jeans around her knees, inhibiting her movement. "You're gonna p-pay for that, loser!" Brielle said with a bit more grit. "Am I really the loser? Doesn't look like I'm the one with my pants down and those embarrassing panties stuck up my bubble butt!" Cindy giggled. She was mostly mocking Brielle, but all three of the women in the house did have significant bottoms, a trait that often got Cindy's bottom slapped at school.
"Yes you're the loser!" Brielle cried, her face more angry now, less pitifully sad. Cindy's change definitely made her feel less like an evil overlord. Now Brielle was just embarrassed, rather than truly sad. "Whatever." Cindy shrugged with a smirk. She walked past Brielle and gave a hard slap to her sister's bottom, feeling it bounce around from the impact, leaving Brielle in the hall, emitting a girly squeal as she rubbed her cheek.
"Just keep your pants down like that at breakfast and I'll go easy on you!" Cindy smiled, heading into the kitchen to find their mother, wondering what she was cooking up today.