I think it is time for a second bike. Little brother loves his big brother's tricycle. He is trying to figure out exactly how to pedal it and from the moment he spots the bike, he does not want to get off. We have had a couple of complete and utter meltdowns in the street when having to share the bike. I am sure the neighbors get a kick out of watching me try to work that one out (especially at 8 months pregnant).
good luck getting him to look up for a photo - he is FOCUSED