As the gifts were unwrapped, Sarah could feel the heat rising in her core as her stepbrother, Mark, opened her present. He was nearly done with the rest of the family's presents and she knew he was about to spend some quality time with her Christmas-themed-vibrator. Mark opened the box slowly, his eyes widening in surprise and disbelief before his gaze drifted down to where the vibrator was hiding beneath the wrapping paper. He cleared his throat nervously, unable to meet her eyes. Sarah, on the other hand, couldn't contain her excitement any longer. "I thought you might need some help unwrapping that," she said, her voice dripping with innuendo as she slowly removed the bow from the top of the box. Mark's face flushed crimson as he realized what his stepsister was suggesting. Without another word, he grabbed the vibrator and began to masturbate.
