I was getting excited by the sound of my sister-in-law's moans coming from my brother and his wife's bedroom, so I was tempted and went to peek into their room. I peeked through the gap in the door and saw my brother sucking on her nipples and feeling great! I was captivated by her gaping pussy. I suddenly looked up and saw what was that?! Our eyes met. My sister-in-law was staring at me. But instead of making a fuss, she showed off her pussy even more...!! My brother's wife is too erotic, it's a problem! She shows off her erotic pussy as she slides it in and out! She has an affair right next to my brother, trying to silence her voice! It's dangerous, but I can't stop, a life of sex with my sister-in-law!!