In the countryside, where summer heat relentlessly pushes temperatures close to 40 degrees Celsius, my older brother still visits home with a responsible attitude even after marrying. My sister-in-law, Yuu, always looks stunning, exuding a dignified and elegant presence. But one evening during dinner, she suddenly flashes her panties under the table. Her sweaty body and damp underwear are impossible to ignore, and she starts teasing me with a dirty, seductive attitude. Unable to resist her advances, I give in—beginning a passionate, sweaty coupling with the erotic woman I've always desired. Our bodies slick with sweat, we engage in repeated creampie sex, yet the heat deep inside her remains insatiable, completely overwhelming me with pleasure.