Only thought I had, about the white bandage, is he had it there to clean up with after he cums. Obviously, this is probably his first time to expose himself and that's why he is so nervous. He needs someone there with him to mentor him through it. Just pull your shorts down and go for it. The people whizzing by on bikes are going so fast they either won't notice or not care!
Not sure what this was. The whole point of flashing is to leave your cock exposed when somebody passes by! And, what's with that long white flag he keeps messing with? Somebody will pass by and think it's a game of flag football on bicycles. They'll rip his cock right off!