Together, almost as one, Becca and Bobbi sat up still holding hands. When Bobby muttered that he needed ….something, Becca felt Bobbi squeeze her hand, she returned the squeeze.

Each knew what the other wanted, just as they instinctively knew what Bobby was there for.

When he pressed the hot, dry tip of his cock to Becca’s lips she felt a surge of something unfamiliar but so natural she just opened her full lips to receive the drop of her brothers precum that formed in her breath.

She sucked gently, looking up into the glint of her brother’s eyes. Bobbi’s head pressed close to her own and she moved to let her sister’s tongue lick along the juncture of cock and lips. She felt the subtle urgency as Bobby pressed in and she let him slip in further, sucking to increase the pressure.

Still holding the rigid shaft she withdrew it from her mouth with a wet “pop” and moved it towards Bobbi’s waiting lips. Her sister engulfed Bobby’s cock hungrily and Becca moved her hand to cup his swollen balls marvelling at the movement inside. She licked along the shiny shaft until the two girls’ lips met, Bobby’s cock wrapped in the two sets of lips.

The wet sounds and sighs of pleasure could be heard in the lull of the storm outside. Becca’s hand slid along Bobbi’s open thighs and found the wet spot she knew would be waiting. Her fingers pulled the panties aside and slipped easily into the slick warmth just as Bobbi’s fingers did the same to her sister.

With moans of pleasure they explored one another, finding this new technique far more satisfying than their own fingers. Bobby gave a grunt of surprise and drove into Bobbi’s mouth. Becca looked up at her brother to see his face suffused in pleasure.