Fantasies turn into action...

Forgetting everything but her naughty eavesdropping and the growing warmth from her crotch, the hardness of her nipples Lauren closed her eyes. Her lips curled into a smile. Maybe her first smile in days as she rubbed her hard nipple, stroked her engaged clit. She spread her thighs, forgetting covering. Listening to others have sex, Lauren began masturbating.

She moved her hand over her crotch faster and faster, feeling her fingertips wetting in her juices. Suppressing a moan she flopped face down on the couch to increase the pressure of her hand against her crotch. She began gyrating in the mimed sexual motion, pushing into it as she pleasured herself.

Unbeknownst to Lauren, Vanessa walked out of her room. Her eyes went wide in shock. There was her butt naked sister, writhing face down on the couch! It took her a half second to realize what she was doing. Another moment to hear Mark Britney moaning in the next room. A grin spread across her face as Vanessa withdrew her camera...