RWBY: The World of Punishments (for The_Guy_With_The_Fandoms)

[nomoewoes]

Yang was not deterred by her wiggling and whining, in fact it made her want to go faster and smack the rump harder. She watched as her backside already began to change color from where her backside was peaking out from under the shorts. After a few minutes, she yanked her shorts down to reveal what she had on underneath

[That_Guy_With_The_Fandoms]

Ruby blushed and giggled as her hindquarters were warmed up by the hand of her older sister. She laughed out and whined as her shorts came down, showing off an embarassing pair of yellow panties that read "Yang owns my butt"

[nomoewoes]

As soon as she saw the underwear that Ruby had on, Yang couldn’t help but smile as she pulled on the fabric and snapped it against her rear. “Glad to see that you are putting the birthday present that I got you to good use.” Yang said with a chuckle before resuming where she left off, alternating between cheeks and occasionally giving a spank to her sit spots and thighs

[That_Guy_With_The_Fandoms]

Ruby looked back, happy to see that Yang was enjoying the view as she wiggled her massive cheeks for her "Glad you bought them. I say they fit like a glove!" She giggled as her booty was swatted again

[nomoewoes]

“I should probably get some more for you and the rest of the team! Maybe make all of you subject for daily inspections to see if you’re wearing them?” Yang pondered to herself as she continued the spanking, watching as the rear bounced with each spank

[That_Guy_With_The_Fandoms]

Ruby blushed at the idea, of having her older sister buy panties for her and check daily if she is wearing them. A lovely thought as the 19 yr olds booty bounced and Quaker from the slaps. Her massive Rubooty started to turn dark pink from under her panties as she looked back at Yang. “I-I wouldn’t mind that Yang~”

[nomoewoes]

“Ooooh if you’re not going to object, maybe I’ll do that then. But as team leader, I’m going to need you to convince the others to agree to it as well.” Yang stated with as smile as she alternated between cheeks she spanked her sisters bubble butt without hesitation

[That_Guy_With_The_Fandoms]

"I think the girls wouldnt mind if I made an executive decision" Ruby chuckled. She and the other RWBY girls have done stuff like this before. So her eforcing a strict panty rule wasnt that big of a deal. Her cheeks bounced and wiggled as they started to turn bright red

[nomoewoes]

After a few more minutes of nonstop spanking, Yang yanked the panties to her ankles to reveal her sister large and now pink bubble butt for all to see. “Are you ready? Are you feeling my hand or do I need to make you get a hairbrush?” She asked as she rubbed and patted the backside

[That_Guy_With_The_Fandoms]

Ruby looked at her with a blush and smirked as she shook her pink wobbily buns in her face "I can take whatever you throw at me~"