One day, You and Kelly were hanging out at her dorm. This was a few weeks after they had met, and Moe could already notice Kelly getting slightly taller. Moe was feeling odd himself. Whenever he went to Kelly's dorm, and you felt an odd stinging in your back. It was very subtle, and was more like an itch, but it left as soon as you left the dorm.
As weeks passed, Kelly grew still. You were even noticing a size difference on yourself. It was a very small difference, but enough to make you think there was something making you both grow.
Crazy as it may be, you started going to Kelly's apartment more often. She was growing faster than you by a lot, just because she spent most of her time in her own dorm, but you noticed your growth speed up the more you were there.
Kelly had moved into this dorm a year ago, and still wasn't assigned a roommate for some reason. Probably lost paperwork, but she was suppose to get one soon.
One day, Kelly had to run out of her dorm to catch something, and you searched her entire dorm for something that might be causing the growth.
You used the stinging sensation in your back as a cold/hot device, and eventually, narrowed it down to a small teddy bear in Kelly's room. As you hold it, the sensation in your back is extremely strong, even after you leave her room. You step outside of the dorm, and still feel it. You found what was making you grow, and heads back in the dorm. Kelly walks in a few minutes later.
"Hey, Kelly? What's this thing?" You ask, holding the bear.
"That was a gift a friend back home gave to me last year." She answered, and headed into the kitchen.
"Oh. Was your friend tall?" You ask.
"Yes, why? How did you know?" She asked.
"How tall?" You ask.
"Very tall, I think he was almost seven feet tall." She said.
"Holy crap. Was he big? Like, muscles?" You ask.
"Extremely, he was going on the road as a professional body builder. Haha, I remember how embarrassed he use to get, because his penis would show through everything he wore. It was like a monster." She said, almost daydreaming. "Seriously, I think that thing must've been at least a foot long."
"Whoa. Was he always big?" You ask.
"No, it took him...like...a few years to grow that big. He was really short too, his growth spurt was... sudden...like...mine..." Kelly said, connecting the dots.