Sister problems

Lauren, growing ever more uncomfortable standing in front of her sister fully nude, moved to the couch. As she turned her sister snorted with laughter.

"O.M.G. Did mom spank you?" Vanessa said, seeing the hand prints across Lauren's ass. Lauren cringed, and spun about trying to aim her butt away. Eventually she backed over to the couch and sat.

"Oooh!" She moaned, feeling her raw skin on the sofa. She leaned awkwardly, resting on her hip to keep her sensitive butt off the couch. Her sister chuckled at Lauren's squirming.

"Smile for the camera loser!" Vanessa laughed, pointing her phone at Lauren. Lauren stared, jaw hanging when Vanessa snapped a shot of her naked on the couch, cupping her crotch and breasts, every other inch of skin revealed!

"HEY!" Lauren objected. Vanessa just laughed, and sat opposite Lauren scrolling through her phone...