Http://www.flickr.com/photos/40570123 @ N04/3732520357 / Why Does My Stomach Stick Out After Eating?

Why does my stomach stick out after eating? - http://www.flickr.com/photos/40570123 @ n04/3732520357 /

I am in shape 16, slim men, every time you eat a normal size meal, my stomach is moving on, when my chest ..... I do not look good, because without a shirt, and it slows me if I do not think not to mention competitive swim (that makes me look bad in a bathing suit I) that, because my stomach is bloated is still soft, only large

Photos:
Before the meal:
http://www.flickr.com/photos/40570123 @ N04/3732520357 /

http://www.flickr.com/photos/40570123 @ N04/3732520321/in/photostream /

After dinner:
http://www.flickr.com/photos/40570123 @ N04/3733319324/in/photostream /

http://www.flickr.com/photos/40570123 @ N04/3732520173/in/photostream /

Is this normal?
and why?