She replied by saying everyone knows he’s a virgin and she didn’t say anything wrong.
This annoyed me, as my brother definitely has confidence issues and doesn’t need to be made fun of like this.
So I responded by saying how she slept with well over 100 men while she was in college, and that since everyone in the family knows this, it’s not a big deal, right?
Turns out her husband didn’t know this, amazingly — I genuinely assumed he must have known. He left the party angrily saying that my sister misled him about her past.
The family is blaming me for their marital problems.
I refuse to accept that I did anything wrong. My sister bullied my brother in front of everyone; all I did was give her a taste of her own medicine.”

