The perverted friend can't keep his eyes off his associate's nubile teen sister. When she catches him staring, she plays along, teasing him mercilessly. One evening, she corners him, her luscious body pressed against his. "You've been missing me, haven't you?" she purrs, her hand wrapping around his throbbing cock. Their taboo encounter escalates quickly, their lust fueled by the forbidden, until they're both left panting and guilty, wondering if they've crossed a line they can't uncross.