So I got this thick pants model, but how do I extrude it so it doesn’t look like that?
Pants pic:
http://gyazo.com/9efeffc4109a1ef7b9f6110b09bb88d0
Geometry>EdgeLoop>PannelLoop. Probably just 1 loop and 0 Polish 0 Bevel.
You can also use the Store Morph Target, then inflate and press CreateDiff method
Worked like a charm 
You can also mask all the mesh but leave the part you want to extrude alone. Then. Hold ctrl key and turn to Move Mode or scale mode to move or scale. The. Mesh will be extruded .if there is subdivision. Level, freeze it First .