Jeff had selected an entire list of changes for the football team. Each change would last 30 minutes. The transition between each change would last 15 minutes. Within these 15 minutes, they would reach a transition state, that would always be the same regardless of the following change and what the team would revert to when the sun rises the next morning. Jeff also made sure that he was aware of the changes that were to take place, although he didn't realize that Derek was also going to be aware.
Derek, in anticipation, had to go to the bathroom to relieve his hard-on that he had, not noticing Jeff descending the stairs. Closing the door and locking it, he pulled out his cock and began pumping away, images of the possibilities Jeff could change their teammates into. He felt a wave of heat wash over him and quickly took off his clothes without thinking about it. He continued to pump away, barely noticing that he was starting to get older and bigger.
As Jeff walked around the party, he could tell when everyone felt the same heat wave for they all began to shuck their clothing off, even Jeff and the coaching staff. However, no one seemed to mind, notice, nor care that all of the party guests were now as naked as the day they were born. Jeff had to be careful about getting a hard-on right now, since he knew the mental changes weren't going to come into effect until much later.
With utter glee, he felt himself getting slightly taller. His chin began to itch, and he felt stubble on his face, as if he had forgotten to shave that morning. His arms got a little meatier and his chest got thicker. He coughed as his Adam's apple protruded farther. He knew now that he was 21 years old.
Looking around, he saw his teammates finishing up their aging to 21, still oblivious to the changes. The coaches had undergone a different change. They got younger. The years seemed to melt away as the hair on their heads began to darken and fill back in. Their old muscles grew some young definition, reminiscent of their college days as athletes. They didn't regress down to 21 like the players, but instead stopped regressing once they reached 25 years old.
Then, all of the muscles on the men began to grow. Jeff was so thrilled to feel that his muscles were now the size of Derek's massive muscles, as were everyone else's muscles. He made sure to get the correct amount of muscle so that no one would feel left out of his boyfriend's beautiful size.
In the bathroom, Derek had just opened his eyes and looked in the mirror. He was shocked to see the 21-year-old muscular man staring back at him. Looking down for a bit, he realized that man was him!
"The changes must have begun already!" he thought. His whole body began to grow, his arms and legs at a faster rate than the rest of his body. His pecs ballooned to twice their original size, now looking like overstuffed watermelons. His ass swelled to make a very large, and very perfectly shaped, bubble butt. He was liking those changes.
He started getting a little alarmed though at how big his arms and legs were getting. His shoulders were huge, now about the size of pumpkins, and his hands and feet had gotten bigger than his head! Pretty soon, his arms and legs were the exact same length. Suddenly, his legs and feet cramped up, and Derek felt the bones reshaping themselves.
"Jeff, what did you?" Derek moaned. He looked down and saw with shock that his legs and feet were now exactly identical to his massive arms dangling from his sides, which continued to swell even bigger. The growth slowed when Derek's shoulders were the size of extra large pumpkins and both sets of arms were as big around as a soccer ball. But all of it was muscle. There was very little fat on Derek's body.
"I look like a human-ized gorilla!" Derek said to himself. His cock now was screaming for attention. Out of curiosity, he fell forward onto his upper arms and lifted his lower body. He now was able to stand up straight but be upside-down. Thinking his "lower" arms could take care of his cock, he began to slowly stroke it, enjoying the pleasurable sensations it was bringing.
Jeff grinned as the physical changes slowed. Everyone now was a man-gorilla, and their behavior STILL hadn't changed! Some remained vertical on two arms, while others went to all fours. He decided to find a good place to be while the mental changes kicked in and overheard a nearby conversation in the process.
"So I have set my eyes on a girl on the cheerleader squad," Mike, the starting kicker, was explaining to Patrick, a wide receiver. "She's the really blonde one with the, uh..." Mike lost his train of thought as he stared at Patrick's erect nipples like he had never seen anything sexier.
Patrick laughed as he started finishing off his can of Pepsi. "What's the matter, Mike?" he asked. "Getting off just from talking about that girl?"
Mike didn't answer him at first then replied, "What girl?"
Setting his can down on the nearby bookshelf, he looked at Mike, incredulously. "The girl you were just talking about? That one blonde girl on the..." he trailed off as he stared into Mike's electric blue eyes. "Uh...I never realized your eyes were so sexy!"
"Did you know that you have the sexiest pair of nipples I have ever laid eyes upon?" Mike asked back, stepping towards Patrick. Before either could say another word, they embraced each other and began making out. Their tongues wrestled for dominance. Pretty soon, it was Patrick's tongue that won. Mike was suddenly filled with an immense love and devotion to Patrick.
"I love you, baby!" he whispered in Patrick's ear.
"I know," Patrick whispered back. "Now suck my nipples." Mike was more than happy to oblige.
All around the party, various pairs of man-gorillas suddenly found the one they were talking to as the most sexiest thing they had ever met. When they would initially make out, whoever's tongue was came out as more dominant became the dominant one in that pair. The party quickly turned into a big orgy.
Hearing the loud moaning outside of the bathroom, without even thinking about it, Derek walked out of the bathroom still upside-down. He was amazed, and incredibly turned on, to see the same changes on everyone else at the party. There were pairs of man-gorillas in various positions: some were on the ground, some were 69-ing vertically, and others were like Derek and did everything upside-down. Derek was shocked to see that some freshman was drilling his cock into the head coach's hole, a look of pure ecstasy on both of their faces.
"There you are," cooed a voice from behind him. Turning around and tilting his head up, he saw Jeff smile dreamily at him.
"Flip so I can fill your cute bubble butt!" he ordered Jeff, who quickly obliged his request. They were both upside down, facing each other, with Derek's cock inside Jeff's ass. They made out as Derek began to pump away, their "lower" arms trying to reach as much muscle as possible.
The orgy continued for another 15 minutes, the dominants controlling the positions the entire times. Every now and then a couple of threesomes or foursomes would happen, but the dominants soon got sole control of their submissive. It wasn't until after the 15 minutes when another mental change swept across the party.
Derek felt the change the hardest when he was standing upright and Jeff was in a gorrila-like position, sucking Derek's cock.
"Oh yeah," Derek thought, his eyes closed. "Suck my cock, boy! I love it when he does this! I love him so very much! I want to do anything he wants to do! I hope he decides to fill me up with his cum!" He opened his eyes in alarm. Wait why was he thinking like that? But Jeff's next words made him forget all about that.
"Get down here so I can do you, gorilla-style!" he ordered. Derek squealed on the inside and did as his dominant told him, not even remotely concerned about the change in his thoughts.
The same thing happened around the room. The submissive gorilla-men became dominant, and the dominants became submissive. Jeff unselfishly wanted to share his submissive pleasures with Derek, so Derek could enjoy them too.
The orgy continued anew for 15 more minutes. Then, Jeff heard a chime coming from the Chronivac, signaling the transition into the start of the next listed change.