On the weekend, I decided to visit my brother and sister-in-law in the city after a long time without seeing them. Unfortunately, my brother had to work overtime on the weekend, so it was just me and my sister-in-law at home. My sister-in-law has a round, full bust, a slim waist, and a curvy bottom that looks very attractive. Whenever she sees me, she always wears light, revealing clothes that expose sensitive areas of her body, and she intentionally performs actions that seem very seductive. This has stimulated the wild instincts deep inside me, and I seem to turn into a beast, rushing to pounce on my prey without mercy, causing her to continuously moan in pleasure.