I have one older brother, who I love very much. I'm male too.
We're both in our early 40s now and probably only speak a couple of times a year. Which might sound weird but it's just the way we are. He is immensely likable and it's not an act. We love talking when we do.
We fought like mad as kids. We never stopped. I thought he was a thug and he thought I was a smug intellectual. Not sure either of us were entirely wrong at the time. We got a grudging respect going through our teens and got on really well around the time he moved out.
There's a couple of things that made a big impact on how I feel about him.
Firstly when I was about 13 some real shit happened in our family. I don't want to go into details but my parents, who have been wonderful parents for all the rest of my life, both uh... lost their way a bit. I found out years later that my brother shielded me completely to the extent I was never even aware of any of it.
Secondly, when he was in his early twenties he got with a young single mum and dedicated his life to them. He built as strong a bridge with the dad as possible to create a nice atmosphere for the kid. When she turned 18 she told him she loved all three of them but he had been the strongest parent who she'd felt she could always count on. Years later I got with a single mum, and he was my absolute role model. I followed his example and it's the best thing I've ever done.
I mean, when I was 11 he locked me in a wardrobe for a couple of hours and when at my sixteenth birthday party, with several girls I really fancied present, I opened his gift and was presented with novelty "small penis condoms" and things like that... but yeah, I love him.