Iggy,
You are NOT obese............. not quite as slim & trim as I am but then I am a bit younger than you. Also I believe my genes make me more prone to growing into a slim, trim, somewhat slinky feline.
I would suggest throwing yourself down on the floor at their feet whenever someone goes in the kitchen. It works most of the time at my household. If I am ignored, I get right in front of my slave when she's at the counter & slowly stand up & put my paw just over the edge of the counter feeling around so she'll think it is serious. I also try gropeing around under the stove as if I'm looking for crumbs.
Just humor them a little while and be your charming self......... they'll come around.
Your Begging Buddy, Jingles