Chapters tagged muscle growth

by Bh12

Chapter 9

As cum was released into Tom, John started to grunt and groan, because his cumming wasn’t stopping. He could feel a change to his muscles, starting with his groin his cock grew longer and thicker and his balls started to grow to the size of tennis balls then to the size of grapef...

by cdbaby

Chapter 3

"What if I worked out six days a week for six months?" The machine clanged and clicked and a flash from the screen before the blank image changed. Your stomach was flatter and your chest had actual pecs instead of the nothing that was there before. In the tv you saw your buff sel...