S.M.
My 2 3/4 yr old girl and 18 month old boy both love brushing teeth. I just say, let me brush first and you can brush next. When she clamps down i just say, "show me those beautiful teeth so we can make them nice and clean," then I'm quick about it. For both of them I will put a little more of the toddler safe toothpaste and let them brush their own. That way they get practice and they know I'm going to let them, so it's no big deal and not a fight. I always tell them what a great job brushing they do.