It's possible, I guess, from what I am told. My brother (4 years older) "played games" with me. I was too young really to know or understand. To me, it was all play and make believe, and I trusted my brother. He was in his teens/early teens, so he knew what he was doing. I didn't. It's still hard for me to see it as abuse because it was all play to me. By the way, this same brother asked me if I would go out with him and sleep with him when I was 18. Of course I said "NO!"