We were sitting around after dinner shooting the breeze, some of us half in the bag, the other some all in the bag. Uncle completely passed out...alcoholism runs in the genes. We started playing like a truth or dare; tell the truth or take a shot of everclear, and no one wants to drink that shit, talk about puking. So my oldest sister blurts out that mom had an affair with a traveling salesman (we had those in those days) for like six months. We were all laughing, you know, like embarrassed laughing but as we were laughing we started noticing and thinking how he never looked like any of us- we used to tease him when we were little and shit. After all these years my sister was the only one that ever knew. My brother actually started crying saying he was humiliated and embarrassed; said he always wondered why he didn't look like any of us and dad was always beating the shit out of him. Now I'm afraid he's going to do something stupid. I told him it didn't matter, he's our mom's kid and still our big bro. What else should I do or say?