It's not a matter if you're gay or not so dont even let that mess with your head. If you're not gay then you're not. Unlike the previous poster, I didn't see you gay bashing. Just trying to make it clear that being gay wasn't the reason you enjoyed it. I think you're a little confused about exactly what you did like about it. Probably more so the attention you were receiving than the actual act. You seem distraught that your brother "no longer likes you". I believe you are struggling with liking the attention your brother showed you which now he shows you none. You sound very young. Because you were both young and maybe curious at the time, I'm not sure how that would be labeled. Maybe you need to confront your brother and tell him you forgive him and it's okay because you were both kids. Maybe his anger towards you is him hiding behind shame he feels. Good luck!