Is it okay if some of my hens are larger than my rooster?

This may be a dumb question, but with the help of this lovely subreddit, I was able to determine that one of my Columbian Rocks is, in fact, a man. I have six chickens, two Columbian Rocks, two ISA Browns, and two Black Jersey Giants. I am anticipating my BJGs being bigger than my rooster. Is that going to be okay? These are my first chickens, so I am overly nervous lol. Is my rooster going to like my bigger ladies? I don’t want him to be mean to them.