Did I innapropriately touch my brother when we were younger?

Hey there.

When I was about 14-15 years old I was with my half-brother which was about 10 at the time. We were playfighting, and suddenly he kind of kicked me in the balls, and it was uncomfortable, so I was thinking of doing the same to "pay back" by hitting him there as well. Not really wanting to hurt him, it just came off as an awkward poke, and I just poked his area with my feet for a second or two. But I can see from his perspective that it might have come off as an inappropriate touch. We just brushed off the playing and went on with the day like nothing had happened.

Then I remember when I was about 16, he was at my place, and he went to efukt while on my PC. Not knowing what to do, I checked out some clips with him. Nothing awkward happened from this, except that he was pretty young and I wouldn't feel too comfortable watching this with a sibling now :p
I was young and didn't know better at the time. I suppose I wanted to be seen as a cool brother and didn't know how to be one.

Now I've recently turned 24. My half brother is a pretty emotionally "closed" guy and kind of passive aggressive, maybe even slightly narcissistic, and I suppose it's not all that serious by looking at what I wrote here. But I'm afraid it will be even more awkward if I bring it up and that he doesn't really care about this. I know he's gone through some other stuff like being bullied to some extent, but I don't feel comfortable to try to get him to open up, in case he feels bothered by any of this and will blame me for how he feels.

I do not think that that was significant enough to alter his character.