A story about adoption isn’t particularly sexual. The same story could be told about a man and a woman and it just isn’t even in the realm of sex. I have read at least a few stories of adopted kids to my children and I didn’t see sex in it.
I don’t think there is anything to worry about , I even let my kids listen to KPBS radio! OMG! I think they say “same sex” and “gay and lesbian” at least 10 times and hour. I do cringe sometimes , but it’s in pop music , TV and movies…it’s going to be everywhere. Well raised kids can deal with it.
What bothers me is when the kids bring sexually explicit conversation, including homophobic stuff, into the classroom from home. Other kids pick it up and it spreads. Some of the first and second graders do this. I think there should be an intervention into their home life to put a stop to it. I guess often times there is some sort or warning or discipline.