Well to be honest, I wasn't always the perfect kid. But when I wonder what I could do to be a better parent than my stepmother was, I always notice that she & I never had any personal time together. Say, she & I go out for ice cream or do something I wanted to do: it was always something she thought I *should* do, & I was never given any choice in the matter. (On the other hand, she always had time for her own children & was willing to let them choose an activity to do. Ostensibly it was because their ideas were "interesting", but I could tell the difference.)
I worry about this because my daughters are adopted, & sometimes I worry that there is no blood ties between us. I want them to feel that they have a real father. I find I achieve success in this when I play the games they want to play, do the activities they want to do, & try to have a conversation with them, rather than tell them stuff.
As for teenagers, I have been warned about a couple of things to be aware of when my girls come of that age. In a way, I'm dreading when that time comes, but I'm also looking forward to it: I'm more comfortable interacting with adults than kids.
I have to wonder if Kimberly's stepfather ever thought of these matters. And to be honest, you have to work at doing these things when the kid's not yours.