With a bit of a groan, I stood up, my body had grown a bit in the stomach, the other enhancements I had made were beginning to work their magic. Smiling I sighed deeply, a low rumbling fart brought my girlfriends eyes to me, my cock hardened slightly before spasming and letting a steady stream of urine flow, gasping my girlfriend watched in awe as I soaked the panties I had put on. Then I decided to shock her further, putting a hand on my stomach, I began to rub it gently, a small fart was heard each rotation my hand made around the circumference of my enlarging gut, this continued for 30 seconds before the farts became longer and wet aounding, as soon as that happened I pushed down, gasping in pleasure I felt the wet warm fabric of the front of my panties tent outward as the back began to fill slowly with warm shit. In a haze of pleasure I took a hold of my cock and began to stroke, the warmth of my ass, the warm piss soaked fabric of the panties and my ever rising arousal was to much as I began to slowly jack myself off. I would have brought myself to climax, however my girlfriend stopped me by planting a kiss firmly on my lips, only to have my mouth inflate comically as she belched. She smiled at me, "Boy, you certainly were enjoying yourself, it looks like you made quite a mess. I'm glad I stopped you before you made an even bigger one." She winked at me, pulling down my panties and reveling my erect cock, a slight dripping sound was heard as well, smiling she looked up at me, "You really were having a good time weren't you? Well two can do that" She rose and smiled deviously before she began to....