Those two look like best friends.
They are :) they love to run and play together all day every day.
I've had both boxers and German shepherds and they're both the some of the best friends I've had. My boxer was an absolute goon and super social with both dogs and humans while my German shepherds have loved humans and were friendly with other dogs, but were super alpha and kind of independent. I feel like that might be the same case here since the boxer is the one spooning while the GSD is just trying to nap, haha.
You hit the nail on the head except our Shepard is super protective of her brother. He loves people, animals ect. She just watches and makes sure everyone is nice and plays nice with her brother (who loves to wrestle much to her dismay).
That's the sweetest!💓
Ah, my old shepherd was like that but our current GSD is an only child. He's super friendly with stranger's dogs though, but when he's in a group he acts indifferent, doesn't seem interested in play, and just plays lifeguard with the other dogs. I guess he thinks he's king shit. When other dogs try to wrestle he just barks at them, but he would never bite.