Wow, Kate sure is amazing with those phrases! We've been working on "More please" for weeks and haven't gotten anything from Leo!
That's so great that Kate loves to be read to! I can remember my little brother and sister being the same way. They were toddlers when I was in high school and I can remember them sitting in my lap for the longest times while I read the S-A-M-E stories over and over and over and over and... oy! Kids love repetition, that's for sure.
Right now Leo is really into these tiny books I bought at Borders on clearance. There's 8 board books in the set and they are the perfect size for his hands. They come in a little carry-case too. Each book has a different theme-- food, things around the house, animals, toys, etc. and each page has just one picture along with the word. He will sit for a story book too, but much prefers to look on his own at this point.