As part of a weight gain challenge that Empress runs, Empress challenges you to a mutual stuffing. Here's how it works. You both have to continue eating until the other person calls it quits. So as long as the other person is still eating, you have to keep stuffing. So you could end up making Empress eat a LOT. She spends twenty minutes stuffing with you, talking about you growing fat/other feederism related things, all while her belly grows rounder and rounder.