That's scans_daily, looking for stuff that isn't there. Sometimes it's like finding a horsie or a duck in the random shape of clouds.
The casual interaction between Sue and Johnny doesn't advance the plot itself but it makes them seem human. Johnny is eating a sandwich and being sarcastic, like a real younger brother. Yet he comes over to hang out with her, not because of fantasy incest but because they're family and grew up together. The gag where he's excited about what he sees outside and she thinks it's because of her hair is nice throwaway line... typical Stan Lee adding some personality.