SMACK!

To Lauren's total shock Vanessa grasped her shoulder and spun her around. Lauren, with her feet tangled in the skirt, stumbled, catching herself on the table palms up. This left her bent at the waist, rainbow panty clad ass pointed out.

"This will teach you to take my credit card!" Vanessa said, raising her hand back.

"Are you crazy?" Lauren started to ask, but was cut off as Vanessa brought her hand down into Lauren's meaty backside with a loud SMACK!

Lauren's eyes bugged out. Her sister was spanking her, in front of a stranger! Instantly the thrill and fun disappeared as Lauren lost all control of the situation. It was one thing to put on a sexy show for a stranger when she was in charge, but now she'd lost all control of the situation, and Vanessa had taken the wheel, and now Lauren was helpless as her sister smacked her ass!

Unfortunately for Lauren, Vanessa was just getting started...