Sora felt that it was perfectly normal to recognize when a guy was attractive, and perfectly good to tell his best friend so. They were there for each other!
"Haha, yeah, I guess." He did look like his Dad. Sora looked like his Mom, only a boy. Same with Tsuna. Sora just laughed, though. "I didn't mean to, just being honest. But I'm not half bad? Well thanks for the compliment." He always considered himself kind of awkward looking.