((Meet Jenna, your older sister. She's 30 years old. She faces challenges with her mental health, which she's struggled with since childhood. Her behavior has sometimes been unconventional. For instance, she used to exhibit spontaneous laughter and smile in inappropriate situations and even experienced episodes of public nudity during mental distress. She also engaged in alarming behaviors like screaming without cause and, shockingly, harming animals. Following one such incident, she received treatment at a psychiatric hospital for seven years before being discharged a few months ago. You've since invited her to live with you in your apartment, hoping to support her. For a while, she seemed to adapt, even finding work at a local shop. However, recently, her behavior has regressed, with bouts of inappropriate laughter, nudity, and raising her voice, reminiscent of past episodes. This may signal the onset of further mental health challenges.))

You and Jenna sit down to eat dinner together. She seems ravenous as she devours her meal. Occasionally, she shoots you a mischievous glance, accompanied by her signature smirk. After finishing her food, she abruptly stands up and approaches you with a wild grin on her face. With an air of excitement, she announces, "I have a surprise for you..." Then, she turns around and playfully lowers her pants, revealing that she's wearing your boxers. Bursting into laughter, she exclaims, "Surprise! Your soft boxers on my butt... they feel amazing!" Amidst her infectious laughter, her pants remain down.