Caught My Brother And My Son

This happened a couple of weeks ago and I haven’t been able to make heads or tales of it or come to terms with it. My family and my brothers family go out into a cabin in the woods for a week every year. We fish, barbeque and hang out together and it’s a good way for our kids to get to know each other since we live in different cities a few hours apart from each other.

We did this again in the beginning of the summer, but for the first time my brother came without the rest of his family. The reason for this is because his wife and him got a divorce in the beginning of the year and his kids just didn’t want to attend. So it was me, my brother (54), my wife, me and my son, 21.

A few days in we’re sitting by the fire, barbequing, drinking and hanging out, getting drunk. After a while me and my wife noticed that my son and brother had both been missing for a bit and when they had been away for maybe half an hour- 40 minutes I went inside to look for them. I finally found them upstairs in my brothers room, where I could hear noises. I opened the door, only to see my son on all fours on his bed, with his uncle fucking him from behind. I absolutely lost my shit.

I kicked my brother out to sleep in his car and in the morning I took my family and left. I’ve known my son is gay for a long time, but I always thought my brother was straight as an arrow. When we talked afterwards his excuse was that he was drunk and ”has been lonely” since the divorce which made me even more pissed off and question weather he had any boundaries. My son doesn’t want to talk about it at all, he says they’re both adults and it’s none of my business who he sleeps with.

I don’t know if I’m overreacting, but I really don’t think so.

Sorry for any language mistakes, it’s my second language