"Sure is, dear" you say as the beam emits from the gun with the Weight attacment, and you watch as she begins to bubble out, changing. Luckily her clothes grow with her, because with the rate her belly and ass were growing, they would have torn then by now.
She giggles as her belly becomes a paunch, then a plain and simple gut.
She places her hands on her ass as it billows out and becomes a shelf-butt and then some, and then she starts to waddle towards you as her thighs thicken.
"Wow...this is so cool" she said. "Never knew I would be fat like you two!" she added with a chuckle as she felt her new belly.