Suddenly Mr Mendes felt like his entire body was tensing, flooding with a sudden spike of testosterone. His scrawny muscles began to swell, becoming hard and toned. His frame began to stretch, his bones creaking as they grew in size, becoming both longer and thicker. His 6'2" body grew to 9'1", his shoulders becoming broad and his chest barreling out. Even his waist and hips got thicker, followed by his hands and feet nearly doubling in size. His lean body now replaced by a thick and stocky one, with his muscles still growing. His arms and legs both grew thick with muscle, as his pecs puffed out, hard and well-defined. His nipples hardened and poked out and his stomach tensed as his abs became a six-pack.
A warming heat swelled in his groin as the changes moved on there, growing his cock to match the rest of his body. His flaccid cock doubled in both length and girth, larger than it used to be hard but still soft. His sac dropped lower, making room for his swelling testicles, growing to a pair of plum-sized orbs. His ass bloated more and more, sticking 8 inches out.
His skin thickened slightly, becoming tougher as it began to darken slightly into a greyish tone. His smooth cheeks and jaw had grown a slight stubble, his sideburns becoming thick and full, as well as a longer tuft of beard on his chin. He felt his nose broaden and flatten, as his brows became thick and heavy over his eyes. His jaw squared and jutted out a bit.
His pubic hair and the sparse hair on his arms and legs began to thicken, his arms and legs developing a thick coat of hair that went up to his biceps and up his thighs. His pubic bush spread out as well as his arms and legs covered along with his head leaving his chest, abs, hands, feet and face exposed with his skin.
With the changes to his body complete a crude bit of tight white briefs appeared clinging to every fiber of his bulging manhood and enormous ass. He felt heavy, but a feeling of power seemed to course through his muscles. Mr Mendes liked his new body as he flexed one arm, throwing a thick bush of hair under his pit on display. His other hand started groping his thick pec, pinching the thick nipple on it. His tongue stuck out with a cocky grin while his hand glided to stroke his locked away cock. His new ape face blushed with red at the sight of it.