An SF short story by David Lee Stone, originally written in 1998.
'Oh, she's in good shape now...but you notice the Chockstrike bar she's munching on? You see the appetite there? Add that to the chunky excess on the legs packing out that miniskirt, and Roberta's Your Auntie. Fat Futures Girl. Sooner or later, that one's going straight to the farmyard...and she isn't coming out.' (....from InnerYou)