Alex and John cough and sputter as the powder covers their faces. They look at each other, eyes wide, knowing what's about to happen.
"Yay! We all get big now!" Ken exclaims as Alex and John look down to see their bellies growing bigger and rounder. Alex tries to push his stomach in, as if he can stop it, but he only gets handfuls of soft fat in return.
"Don't fight it," John says, looking at his swelling body with fascination, "it kind of feels nice."
Both guys try to remove their clothes as quickly as possible, knowing that in a few moments they'll be destroyed. They manage to get their shirts off, exposing their full bellies and growing chests, but the pants prove more of an obstacle as their new-found fat makes it hard for them to maneuver. Sure enough, when they try to pull the pants down, they find they won't go down. Their hips and butts are already too fat. Their pants split almost in unison, showing off two pairs of unsteady tree-trunk legs.
"Sit down, guys," you say, your hands absent-mindedly caressing your new gut. "Trust me, it's easier."
Alex and John slowly lower themselves to the floor, the boards shaking a little in response. They spread their legs wide to let their bellies grow and advance, breathing heavily and still in a mild state of shock. Once the growth stops, you admit that the scene is kind of amusing. Four guys, each having at least doubled their weight in a few minutes, sitting in an attic while one of them giggles and claps like a highly amused infant.
"We so big!" Ken giggles.
"How'd we get so fat?" Alex asks to nobody in particular.
"Just enjoy it," John says. "I kind of think if feels good."
"Whatever. Kaylee, you gotta find something to reverse this." Alex looked desperately at his girlfriend, who had been standing mouth open the whole time. She snapped herself back to reality.
"OK, let me see what else is in the trunk." Kaylee dug in the trunk and pulled out...