"What are you doing to me??" asked Robbie as he felt himself shrink back down to his original height. "You're sick you know! I'm not gay!"
"Heh, well than why is my kiss changing you?" Ty asked, laughing. "I said whatever dimension your lover dictates, didn't I? I always thought there was something odd about you."
Robbie felt himself continue to shrink down past his original height, and felt his clothes become baggy again. This time though, he felt a little different. It was like another part of him was changing as well. He felt a slight tingle in his crotch that kept growing stronger and stronger.
He was completely erect, and for some reason he couldn't stop thinking about that kiss from Ty. He wasn't gay exactly, but bisexual. He always figured that his attraction to men was less, but this was proving him wrong.
He didn't know it, but when Ty kissed him, he knew about Robbie being bi. He figured he should make his attraction stronger to men, to see what would happen. He also wanted Robbie to work for his size again, so he also wanted him to regress to being 14.
Robbie had to rush to a mirror to see what was happening to himself. He looked at himself in horror as he saw that he was becoming younger! He was originally 18, and just starting his final year of high school. Though as he watched himself continue to shrink, he noticed his rough stubble was beginning to retreat back into his body, and become fine and wispy hairs that were barely noticeable.
Robbie had changed quite a bit in only four short years, so these changes were much more noticeable. He was now 5'6", which was half a foot shorter than he originally was; he looked at himself and realized he was 16 now. He was still built nicely for his new age, but that was beginning to fade fast. His biceps, and chest shrunk and became skinnier first, then his abs slowly faded. Then his waist and legs started to shrink. His feet also shrank, and his shoes became roomier. They felt 4 sizes too big!
"No OnE iS goNNa WAnt to KIss ME noW!" he said as his voice cracked in reverse. "My voice! How could you do this to me?"
His voice had levelled out now, and was quite a bit higher pitched now. Within seconds of this, his basketball shorts fell down around his ankles. His shirt looked like it was 3 sizes too big! He stared at himself in the mirror. His transformation was complete; he was now a scrawny, 5'2", 14 year old boy. He was horrified at the size of his penis. Everything was exactly the way it was when he was 14, even his fully erect, 3 inch penis!
"That was the idea," answered Ty. "You should be exclusive to your lover Robbie! Now I'll be able to tell if someone else kisses you."
"Why?" asked Robbie. "Why does it matter to you if I kiss someone else?"
"I want you all to myself!" replied Ty, shouting. "Plus, like this, you're closer to my age. So now you get to be the helpless one!"
Robbie tries to run away, but as he does, he trips on his shorts and his shoes slide off of his feet. He gets up, and while holding up his shorts, tears well up in his eyes, and he rushes out of the change room, leaving his shoes behind.
Ty was laughing like crazy. He had never, ever felt so powerful before. He wondered what other mayhem he could release upon his school with his powers.