I have NYDJ in a pair of jeans so I thought Id try the shorts too!  They do not disappoint....... very slimming and comfortable.
They don't suck in your stomach, BUT at the same time you don't have that muffin top!
I can wear any top with them.
They do get looser during day as you wear them.  Sometimes I use a belt.
My normal bottom size is a 16 and I have bought these in a 14 as recommended by company.
These are the only jeans/ jean shorts I will ever wear for a long time to come.