Adam was panting; the size of his sex clearly had influenced the size of his orgasm and he was still basking in the afterglow a bit. His huge shaft continued to shorten as it got softer, but no smaller in actual scale. He looked down at Mario, sitting back on his haunches and looked a bit confused. Already thoughts of his girlfriend were fading.
"Mario... What ... what just happened?" he asked, rubbing his giant balls in disbelief.
The knock sounded again as Mario licked his lips, getting more of the cum off of him. He was only half paying attention to Adam; rather, he was looking at his arms and legs, watching as they slowly contracted. He could feel the smooth wood of the floor sliding by underneath his knees as he got smaller. The creak of Adam's chair got his attention though, and he looked up to see the huge man rise and go to the door, grabbing a towel to wrap around his waist. "One sec...!" the physics student shouted.
"Adam; no!" hissed Mario through clenched teeth, but it was too late.
As Mario leapt to his feet, his small body just under five feet tall, his roommate opened the door. Outside, a slender, blonde fellow was standing, a backpack over one shoulder and a dorm map in his left hand. He looked up shyly at Adam and smiled.
"Uh, hi... I'm Clay ... Clay Danvers? The Dorm Assistant told me I was rooming down here..." His eyes wandered to the cum-covered Mario as the small, shrinking Hispanic student dove for another towel. Clay's eyes widened.
Adam felt a sinking sensation and with a quick glance outside into the hall, reached to grab Clay by the shoulder and pull him inside. The physics student's towel fell around his ankles, revealing his giant, cock -quite soft now- hanging almost all the way to his knees... "Get in here," he hissed to Clay, blushing as he slammed the door to the hallway. "This isn't what it looks like...!"
Clay blushed and stammered, staring down at Mario as the smaller man continued getting tinier. "Loo...look, I'm open-minded, guys... I just ... I just..." He looked down at his paper and quickly added on, "I have the wrong room! That's it! Uh, I'll be going now..."
Adam rolled his eyes and began to prepare a tirade, but -first- noticed Mario. He stared as his small roommate backed up. "Adam, uh, Clay..." He stared up at the two men and suddenly felt very, very tiny... Already he'd shrunk down to a height of barely four feet tall and, although the shrinking was slowing down, he suddenly felt very, very helpless...
"Mario! Wh..what's this?" Adam sounded flabberghasted, not having heard the earlier wish Mario had made. As Clay started to move gingerly past Adam, the big physicist put his arm on him and directed him to a chair. "You're not leaving, shrimp..." he said to the newcomer, pushing him into the chair. A small puff of white dust was disturbed from the cushion and caused Clay to cough slightly. Adam turned back to Mario. "Not until we know what's going on, here..."
Mario felt his heart fall. Shaking his head, he blushed and muttered -without thinking- "Gods, everything was going so well! I wish Adam were still horny..."
A large hand on his shoulder brought his eyes up to Adam's. Even though he was only four feet tall, the look he saw in his roommate's eyes seemed to indicate that he wasn't quite as interested in finding out what was going on anymore...
"Mario," he said, his hand going to his cock. "I think we should give our new roommate here," he shot a glance to Clay, "a bit of a show..."
Mario swallowed hard. "Uh, is that a good idea...?"
Adam grinned. "My dick says it is..."