"What?" you laughed as he fiddled with the attachments and aimed.
"Trust me, it'll be fun" he said as he fired and another blast of
green energy flew towards you.
You then felt odd tingles running up and down your backside, as if
someone were tickling your ass with a feather. Then it happened.
Your ass began to...inflate...grow larger with each passing second. It
was filling with fat, and becoming, well, huge.
You placed your hand on it, and felt it grow into your fingers.
"Neato!" you say as you let out a large fart.
"Perfect" Jake said as he grinned at your now very bottom heavy pear
shape. "Now then, let's go downstairs and have some more fun" he said
grabbing the box of attachments and the two ray guns.
The two of you head downstairs, your newly enlarged ass wobbling as
you go.
"How do you like being a slob?" he asks, knowing you love it.
"It's great, I was missing out."
"Most people are, but who cares. More fun for us to have"