Since I'm tall with a long torso I've always found it easy to suck my stomach in and attain a temporarily flat stomach. Even late into my weight gain I was able to feign a flat tummy for a few moments if need be... But upon request I decided to give it another go and see what I'm working with... Let's just say my tummy is no longer able to fake relative slenderness even for a moment. I'm a complete fat ass pig with a huge jiggly belly I can't hide to prove it! ;)