After plugging it in, you decided to leave it alone for now and wait to see if it had any damage. You were about to put it away when you suddenly felt a pressure in your body. "Oh shit." You thought. "I must've been so caught up with thinking about this thing that I didn't realize I needed to piss." You laughed to yourself as you always did this when something peaked your interest. You walked into the bathroom and began to go when you heard the front door open.
You couldn't make it out but it sounded as if your roommate had come home, as he said something through the sound of your bathroom break. "Sorry man, I can't hear you! Give me a sec!" You yelled back as you finished your piss. Your roommate Ben was a generally cool dude. He was a year older than you and was Asian. He has short black hair and was fairly short at about 5 something. He's a good guy who helped you find this apartment so he's always welcome with you.
You opened the door, expecting to see him watching T.V, but to your horror you turn to see Ben fiddling with the device. You can barely muster a "No!" before the room flashed. You felt odd as your view began to shrink. Before you were able to see out the window in the room, but as you watched it you lost more and more vision.
You turn to see Ben changing even faster. His hair immediately sprouted out, and grew down past his shoulders. His waist grew smaller as his butt grew larger. Ridiculously large breasts emerged from his chest as he began to age. He was 25 but now he looked more like 30. You look down to see your height continue to decrease until you were below Ben's knees.
You felt other changes strike but you couldn't see them happen. It felt like your hair was changing as you felt what was your dick enter your body. The next thing you saw only pissed you off as a diaper appeared around your waist. You clenched your now tiny and fat fists with rage as the store owner had said younger transformations were usually rarer. "This is what I get for taking home a broken magical item I guess." You thought.
You felt hands grasp around your waist as the slightly older and female Ben began to make cooing sounds. "Hello baby girl, how are you doing?" She said in baby talk. You then were thrown over her shoulder as she began to walk you into a bedroom. Looking over her shoulder, you could see the reflection of an asian baby girl. You still looked a little like yourself but back when you were a baby and if you were another race and gender.
You tried to press the button again but it was too far away. You tried to squirm but there was nothing you could do as Ben or whoever he was now took you into your new nursery.