"Hand them over." Tony pointed to the packet of Fart Fizzers Ben was still holding and smirked. "Oh look, another pack. I suppose YOU could finish that one off,” he said as he tossed another pack of fart fizzers to his friend.
"Man the car is going to stink." Ben chuckled and shook his head as he caught it. They opened their containers, counting about 12 in each. With one final smirk at each other the two jocks quickly swallowed the small tablets, feeling them fizz on their tongues.
After waiting about a minute, Tony looked at Ben.
"Hey, how long till this shit kicks in?" A loud rumbling from both their stomachs answered Tony.
"Man," Ben rubbed his belly, "Do you feel really bloated?"
"Well duh, their fart pills. You're supposed to *urrrp* has gas."
Ben stifled a belch right after Tony.
"What else is around here?" Tony asked as looked at other parts of the store. Distracted by the other objects on display, the two friends didn't notice that a small hissing sound was coming from their stomachs. Slowly, their bellies pushed out, forming a dome of taught flesh. The inflation stopped when they both had guts that looked like they were suffering from beer bloat.
"Dude!" Ben said as he looked down at himself. Tony looked at Ben and then his own belly.
"Well, I guess it works." Tony said as he patted his gut. "Now it's just a matter of doing what comes naturally."
"Wait, not in here! That's just rude." Ben stopped his friend.
"But I've really got to now." Tony complained.
"I don't care. Hold it in till we get out of here."
"Ah boys," said the shopkeeper as he returned "You're in luck. These are our last two costumes, a mechanic's jumps suit and a wrestling uniform."
"Man, we could have just borrowed those from some of the guys." Tony muttered. Ben nudged him, which only seemed to agitate his bloated form. Tony could feel his gut slowly inflate an extra inch and the pressure increased against his ass. Suddenly however, Tony felt the pressure subside and it felt like his ass cheeks grew slightly.
'My ass is probably just numb from clenching,' he thought to himself. Tony looked at Ben and found that his friend appeared to be rather snug in his clothing also. 'Looks like someone should cut out those late night pizza runs.'
Ben paid the renting fee and the two quickly exited the shop. Tony stopped in front of Ben's car and let off a long and deep belch.
"I thought you had to fart." Ben said as he unlocked Tony's door.
"I did, but I think I held it in for so long that it came back up."
"Dude, you're gross." Ben said as he opened the back door. When he bent over to put the costumes down, a loud *phhhhhht* erupted from his ass.
"And you think I'm gross?" Tony laughed along with Ben. Their stomachs grumbled and gurgled in response...