You know, if Itachi were a little less restrained, he would squee over Sasuke...like, all the time. And even though he doesn't do it out loud, he totally still does it in his head.
*Inner Itachi* "OMG! Look at how Sasuke swung his sword, he's getting so strong! <3" "Wow, his intense face is so cute! He used to make that face all the time when he was potty training! <3" ...and so on. XD