You walk as quickly as you can but you are interuppted by a massive fart. You cringe as you smell it, then suddenly feel a very strange tingle in your rear.
You try to look behind, but see nothing as you grab the gun...but then you feel it. Your butt...was expanding. It grew larger, thicker as it made your pants tighter.
"AH!" you shout as you reach for the gun, only to be stopped by another fart, which causes the tingle in your ass to return, and then the expansion happened again, causing a tear to form in your pants
"No!" you say.
You grab the gun and...