At home

"HA ha ha ha!" Vanessa laughed as she entered, causally closing the door behind her. "That' was hilarious!"

Lauren was hunched over, struggling to catch her breath. She had her butt against the wall to hide it.

"Th... that was the most humiliating thing... that has ever happened to me!" She gasped.

"Oh, don't be so dramatic!" Vanessa said dismissively.

"Everyone saw my butt!" Lauren yelped indignantly.

"Yeah, and they all laughed!" Vanessa pointed out. "You're the only one that thinks its a big deal."

"This is all your fault!"Lauren squealed, stomping her foot.

"Hey, it's not my fault your fat ass can't be contained!" Vanessa snickered. "Anyways, YOU'RE the one who split MY panties! If anyone should be mad it's me!"

"That ridiculous!" Lauren shot back, but Vanessa ignored her.

"Now, you're totally sweaty!" Vanessa said. "You should go shower."

She ushered the stunned Lauren towards the bathroom.

"B... but what will I wear?" Lauren asked, totally baffled.

"I'll find you something." Vanessa said. "Now go!"

With that she smacked Lauren's exposed butt. Lauren squealed and ran into the bathroom. Vanessa chuckled to herself, watching Lauren hurry away. Now she had to find something humiliating for her sister to wear....