Mark's heart raced as he watched his teenage stepdaughter, Sarah, walk towards him wearing nothing but a tiny thong. He had thought about her curves and tight teenage body for far too long, and now the opportunity was finally here.
Sarah stopped in front of him, her cheeks red from the embarrassment she felt. She let out a shaky breath, wondering why she had agreed to this. "I-is this really necessary?" she asked, her voice trembling.
Mark smirked at her innocence. "Oh, I think it is," he replied, taking her trembling hand in his and bringing her closer to him. He pulled down her minuscule thong, exposing her perfectly round ass to his hungry eyes.
Sarah gasped as she felt the cool air on her sensitive skin. She tried to step away but Mark's strong grip on her arm held her in place.
