The siblings arrived at the room with the lube, their hearts racing in anticipation. As Sarah reached for the bottle, she discreetly slipped a small amount of clear liquid into the tube. Her brother, unaware of her mischief, handed her the bottle and went to prepare himself.
When they finally began, the normally secretive sister couldn't contain her excitement. As her brother's cock slid into her tightness, she felt the unmistakable tackiness of the super glue coating his shaft. She gasped, trying to hide her surprise, but the look of shock on her face only added to her brother's growing confusion.
As he began to thrust, the effect of the super glue became more intense - it clung to his skin and to hers, making every movement slick and sticky. His pace quickened as he felt the slipperiness of the floor beneath his feet.