During this year's summer vacation, which coincided with Golden Week and Obon, my family was all together under one roof due to the pandemic. It felt particularly melancholic since we were unable to travel or enjoy ourselves like usual. However, there was something different about this particular summer. My gorgeous sister-in-law, whom I always found intimidating yet irresistibly attractive, seemed to be taking advantage of our unusual circumstances by seducing me relentlessly. Her teasing smile and playful touches left me feeling both anxious and aroused, unable to move as she expertly coaxed my erection. As we indulged in our illicit affair, her filthy tongue and unhinged hip movements drove us both to climax after sweat-soaked climax during that scorching August heatwave.