Mark, Adam, Ian and Drake had been friends since pre-school, they had just recently broken for summer from their senior year at High School. Mark was the most muscled of the group, being part of the football team, he tended to be a little dim witted when it came to his intellect. Adam was an all round student, he had smarts and good looks however he never managed to get a girlfriend even though they swooned over him most days. Ian was a nerd, spending most of his time studying, he rarely participated in any sports and had never had a girlfriend. Drake was the cool, laid back guy, he got all the girls (and sometimes guys) that he wanted, when he wanted, his grades were passable however he was told he had more potential.
The group walked through the forest and settled down by the edge of a stream. "Now that summers begun, what are you guys gonna do" muttered Adam, laying back and enjoying the afternoon sun. "I've gotta get a job" grunted Mark, "my parents weren't exactly fond of my grades and they told me that if I wanted to go to college, I would have to start earning." "Same here" said Drake, Ian shuffled slightly "I'm not sure what I'll do," "Come on brainiac" smiled Adam, "surely you can think of something, how about building some muscle." Ian blushed slightly, he never found the time with all his studying, even during holidays.
Drake picked a couple of blackberries from a plant next to them, "Anyone want a berry" he muttered, tossing one into his mouth as he spoke. The other refused and continued to enjoy the afternoon sun as the stream trickled by. Little did they know that the virus had leaked into the water and been taken up by the plant, infecting the berries.
Drake began to feel funny, his clothes had begun to feel tighter. He looked down and saw his shirt stretched tight against his chest showing off his abs and pecks. "You OK Drake" asked Adam, "Shirts a little tight" he replied, Drake pulled his shirt off and the others gasped. "Whoa Drake" said Mark, "you been working out." Drake looked down at his chest, his muscles had doubled in size, his six pack was now eight and his arms were huge. Drake then began to fumble with his jeans as his legs began to swell, he tore them off with ease and the other stared at his muscled legs. "Whats happening to me" asked Drake, "No idea, but if you find out tell me" said Adam rubbing his hand over Drakes new biceps.
Adam suddenly felt something pass into him as soon as he touched Drake, he began to feel ill and dropped to the floor. "ADAM" cried Ian, the others moved in and watches as Adams muscles suddenly expanded ripping apart his clothes until he was naked, kneeling on the forest floor. They backed away as he stood up, Adam's muscles were now as big as Drake's, defined and strong. Also he was now sporting a huge hard on which Drake couldn't keep his eyes off, Adam began to jack himself off, moaning in ecstasy and rubbing hand over his new muscles. "Adam, what the fuck" cried Mark who was standing with his mouth open watching Adam. Ian looked just as horrified and gasped when Drake suddenly ripped his boxers off and began to jack his own throbbing member off.
Drake stepped fowards and pushed Mark aside as he sat down next to Adam and the two moaned as they pumped their members. "Mark, we have to do something, MARK" Ian spun around and saw Mark curled up in pain on the floor, his muscles expanding like a balloon, Ian watched Adam franticly take of his clothes before they tore like his friends and was soon naked and as well toned as Adam and Drake. "What the fuck just happened to me" said Mark looking at his muscles, "I don't know, but we better get help, what ever happened to Drake is spreading." As he spoke Drake suddenly stopped jacking himself, leaned over and began to suck Adam's cock. Adam began to yell loudly in pleasure, "Fuck yeah, yeah suck it Drake."
Ian stood there in horror watching Drake, "Mark we've gotta get help" he turned, Mark was now leaning against a tree jacking his own cock and watching Drake and Adam. "Mark come on" pleaded Ian. Mark looked at Ian and the grabbed him and forced him onto his knees, "Suck" he ordered. Ian looked at Marks throbbing hard on, "Mark you can't be serious" he said, tear in his eyes. "I said SUCK" he grabbed Ian's head and forced his huge cock into Ian's mouth. Tears ran down Ian's face as he sucked Marks cock however as he sucked, he felt different, like his body was swelling. He raised his arm and saw muscles growing and toning themselves before his eyes. It wasn't long after until Mark lost it and unloaded into Ian's mouth, he swallowed it all.
Standing up, Ian now saw that he was the biggest of the four, his muscles looked like they had been sculpted by gods. "So guys" said Mark, "back to my place, it at the edge of the woods and my parents are out for a few weeks." They all smiled and leaving the remains of their clothes behind, walked naked down the forest path towards Mark's house.