Steve thinks of Eleven as the little sister he’s always secretly wanted and he takes his role as honorary big brother very seriously, thrilled and more than a little affected by the fact that someone finally looks up to him in a serious and meaningful way.
His face lights up every time El asks him for a piggyback ride and he never misses an opportunity to run around in zig-zag patterns on the Wheeler’s lawn, El perched on his back giggling as he picks up speed until he’s practically sprinting and she’s laughing joyfully in his ear.
And you can bet that Steve picks up Jonathan, Will, and El and treats them all for ice cream every Saturday afternoon in the summer. El always has to swat him away when he tries to take a bite out of her banana split. Sometimes, when she’s certain no one is looking, El uses her powers to levitate the top scoop of Steve’s ice cream cone into her banana split bowl and, even though he makes a big fuss about it, Steve secretly adores her trouble-making potential.