Wrong. She abused her for years, starting when Lena was 6 and her sister was 1. Their dad was some kind of a pornographer so there’s no telling what she witnessed and was trying to copy.
I haven't seen any stories that refer to the "abuse" going on "for years." But to call it "abuse"--when, by your own account, it occurred "when Lena was 6"--is a stretch.