Best champ for not stealing kills
I've been getting my girlfriend into league, but she gets discouraged if she doesn't get a lot of kills in our bot games. What's more, if I accidentally steal a kill she get's even more discouraged. What would you recommend as the best champ for avoiding kill stealing, while still being able to babysit her? I've tried morg, but pool seems to always take the kill. She also likes to play caitlyn and katarina. She won't play a lane by herself, so I'm always with her.

:^)