I think Kai knows how to pose and how to keep his gut in.. It's not like he is Ronnie - who doesn't know how to hold it in. I've seen many pics of Kai where his midsection is a bit large, like a tight drum. Also, his obliques are quite large. As for now it is not a big problem, but I think it detracts slightly from his front poses, ecpecially when he lifts his arms overhead.
In courtesy og muscletime.com and flexonline.com