Bryan's pants had given way, much like his shirt, but he seemed not at all perturbed by being completely exposed. His hand was reaching around his massive gut, jerking his cock for all to see. Matt could only help but stare, dumbfounded, at the display. Eventually, he found his voice. "Bryan... what are you doing!?" Bryan turned to him, aiming his rock hard cock at him. It was certainly bigger and thicker than it ever had been. Bryan face was worried, yet he continued to beat his meat. "What am I doing? What are you doing!?" Matt titled his head in confusion till he looked down. While he couldn't see around his starter gut, he could see his arm making the tell-tale sign of jerking himself off. And now that he was aware of it, he could feel the rough hand on his dick... which was also larger than he remembered.
When he pulled his gaze away from his own public masturbation, he saw that Bryan had turned away from him. And had bent forward, leaning against the mirror and one hand groping his wide, hairy ass while the other continued to jerk off. Matt was transfixed; he loved thick asses, just normally on thin waifs. Without realizing it, Matt stumbled forward towards his friend's ass. He fell to his knees, mesmerized. Without thinking, he shoved his face into the massive, hairy crack and started lapping as if his life depended on it. Bryan moaned, pushing his ass into the invading tongue. Matt's impressive beard scratched at Bryan's hole, sending new and interesting pleasures through the fat man's body.
A small crowd formed around the pair, many openly masturbating to the sight. Matt's clothes started to strain, as his body expanded near their breaking point. Bryan's gut sagged, making it harder for him to jerk off. Bryan looked over his shoulder, confusion and need in his eyes. "Matt.... please."