Brother wife

My brother likes having other guys fuck his wife so I fucked her. Afterwards, she said I had the smallest dick she had ever seen. To make it worse, I only lasted a couple of minutes. She has sucked my cock a few times since then but won't let me fuck her.

One of my sons fucked his brothers GF. As so often it came to light. I fear it has severed their relationship for good. It's been awful what it has done to my family.