I've always had a secret crush on my older sister's husband. One day, due to family circumstances, I ended up living with my sister and her husband. I was thrilled, but unexpectedly discovered that my brother-in-law had a scat fetish. I was shocked when he started asking me for my poop. I never thought I'd actually defecate in front of someone... But to beat my sister, I ended up pooping right in front of my brother-in-law.