When I went to my brother's house, it seemed they had been fighting over his infidelity and only my sister-in-law was there. As we drank alcohol and talked, she said, 'Why don't you stay over tonight?' When I refused, she grabbed my dick and asked, 'Am I not sexy?' while showing me her cleavage and panties! When I said, 'But my brother is here,' she whispered in my ear, 'This is payback for his infidelity.' I couldn't help but get an erection! And then...
