Samantha grinned as she tied their wrists together, making struggling near impossible. “Having some fun.” She said simply, reaching forward and yanking up both of their underwear in a massive wedge.

"AH!" Amelia couldn't help but yelped when she felt her panties being yanked high up, she had never experienced a wedgie before. "What the hell are you doing?!" Meanwhile, Frank tried his best to break the rope, but even he couldn't do that.

“Getting my revenge!” Samantha said nonchalantly as she gave both of their underwear’s a massive yank, wanting to see how stretchy the underwear is for the both of them.

Both Amelia and Frank started to tear up, they closed their eyes trying to hide it. Frank’s boxers started having rip sounds while Amelia had way more stretchy panties. “Let us go! You’ve had enough!” Amelia said.

“We’re just getting started actually!” Samantha said as she yanked the fabric up even higher, not caring if the fabric rips. “Cause you’re going to do what I say or the school paper’s front page will be with the two of you picking noses in your underwear.”

Frank didn't make any whines but he frowned and struggled to endure the pain, now his boxers were at the edge of being ripped apart. "Fine! What do you want us to do?" Amelia finally gave in as the pain started to overwhelm her.

“I want you to tell me what would be most humiliating for the two of you after I spank you!” Samantha said, giving Frank’s underwear one last rip before focusing on her sister. She put two hands on the panties as she yanked.

*Rips* Finally, the boxers couldn't take her pulling anymore, and Frank's tight bottom was revealed to Samantha. "H-Hey!" Frank said, trying to roll over and cover his bottom. "Ouch! Stop that! Fine I'll listen to you, just finish with the spanking!" Amelia said to her sister, admitting the defeat.

“Don’t worry I will. But first...” Samantha yanked on the panties as hard as she could before latching them on her nose in an atomic wedgie. She then shifted focus on Frank, lifting him up and bending him over her lap. “I hope you like spankings!” She grinned as she ripped the underwear completely so the tush would be completely exposed. Then the first spank fell.

"Ah..." Now the atomic wedgie was applied to Amelia, the pain was even more unbearable, the girl started whining while Samantha deal with her boyfriend. On the other hand, Frank was actually a submissive man, when Samantha pulled him onto her lap, he did his best to hide his excited manhood.