What are Spanx?

"What are shaping panties?" Aunt Debbie asked painfully loudly, to Lauren's growing horror.

"They're special panties to make girls look skinnier and they're butts smaller." Vanessa explained eagerly.

Both cousins burst out laughing as Lauren's face grew neon. Meanwhile Aunt Debbie shook her head.

"Lauren, that' so vain and deceitful!" Aunt Debbie tisked. "Well, they're coming off anyways!"

"No wait, don't!" Lauren groaned as she felt Debbie shred the shaping panties with the scissors. As soon as the garment fell away Lauren's butt, hips, stomach and thighs ballooned out, free of their confines.

"Oh my god!" Aunt Debbie exclaimed at the sight of Lauren's exposed backside. "Lauren, you're ass is huge!"