Ty could not stop thinking about Terry, a kid who was two years younger than Ty and was now four feet taller than him! Ty was glad to have real muscles for a change, as well as to be bigger (not just in stature) and to have done the same to Dustin as well as messing with Jeff, Scott, and Joe. But as for Terry, Ty had made no true changes to Terry's muscles...not yet at least.
Ty watched as Terry sat down in the locker room, examining his longer arms, legs, and torso as he gradually cooled off. He was amazed at how much he had grown in the last half hour, and wondered why this was happening so suddenly, let alone so quickly. Ty decided to explain it to Terry, but he also wanted to do two other things: he wanted to get in on that height, as well as help Terry bulk up. After some thought, Ty came up with a solution.
Terry stood up and opened his locker...and was surprised by what he saw inside. His clothes and changes of gym clothes were still in there, only now they were larger, longer, and in the case of the shirts had more than two neck holes. As Terry stood wondering about this, he suddenly felt a strange sensation taking over his whole body. It felt a little painful at first, but it quickly turned into a pleasurable kind of pain, like when someone is lying comfortably in a warm bed. Terry watched as his limbs and torso grew longer still and his muscles began to grow larger, as did the bulge in his gym shorts, but despite growing slightly tighter, it looked as though his clothes--shirt, shorts, socks, shoes, jersey, and underwear--were becoming larger and longer, too. After a few seconds, Terry realized that his head was no longer aligned perfectly in the center of his shoulders--his shoulders and chest were growing wider, but his head remained the same distance from his left shoulder as before. Then, a bump began to grow from near the right shoulder, a bump that quickly grew into a lump that acquired a neck, hair, ears, a nose, eyes, and a mouth--it was a second head, but it did not look like Terry's original head. When the entirety of the changes stopped, there was a 16'6" teen in the locker room, with hulking muscles, a broad chest, and two unidentical heads even spaced between the shoulders and each other.
Terry's new conjoined brother turned his head towards Terry's head and grinned.
"Hey, Terry," it said. "I'm Ty."