Fat Kid Dances In A Speedo [Video]
I'm going to imagine that this is his parents way of getting him physically active.
They went the extra mile to find a way that their son would enjoy exercise.
It's easy to imagine this since they don't speak any English in the video. In actuality they are probably telling him to dance or no dinner.
The kid does genuinely look like he is having a good time though, and maybe working off his moobs will just be a positive side effect.