Tormented by the moans of my sister-in-law echoing from my brother's bedroom, I could no longer resist and crept over to peek inside. Through the crack in the door, I saw my brother teasing her nipples, turning her on. Mesmerized, my eyes locked onto her wide-open pussy. Suddenly, I realized she was staring right back at me. Instead of reacting with shock, she flaunted even more lewd poses. Her very existence as my brother's wife drove me wild with lust. She displayed her dripping wet pussy with each thrust, cheating right under her husband's nose while suppressing her moans. It was dangerous, but I couldn't stop—my days now consumed by relentless sex with my sister-in-law. Every fleeting moment pulled me deeper into obsession.