How common is sibling sexual abuse?
Long story short, I didn’t grow up around my half brother and don’t really even know who he was until he moved in with our mom when he was 17 and I was 13, from there he’d start to sexually abuse me until the age of 18 due to him being extremely physically violent (chasing me with knives, strangling me almost unconscious, pointing guns at me, etc.) to keep me from speaking out, but that’s besides the point.
My curiously is how common is it that a sibling sexually abuses another sibling? Is sibling sexual abuse treated any differently from other sexual abuse cases? How would I even begin to have this conversation with a therapist?