失控的实验

I lay on the bed, my mind racing: "This is insane. But God, I need to feel him inside me for real." My heart was pounding out of my chest. We'd been playing with that serum for a week, tweaking sizes, but tonight we decided to push it all the way.

"You ready?" I whispered, looking down at him from above. He stood on my palm, barely four inches tall, staring up at me with a mix of fear and raw lust.

"Yeah... just be careful, Alex. I trust you."

"I'll be gentle... at first."

My fingers trembled as I spread my lips and brought him up to my swollen clit. It was hot, slick, throbbing. I pressed his face slowly against the sensitive nub.

"Oh... fuck," I breathed out. "You're so warm... move, baby. Come on."

He started squirming, pressing his whole body against me, his hands and feet working the folds. The room faded to just my ragged breathing, the wet, sticky sounds, and his muffled moans.

"Alex... it's so hot and wet in here... I'm covered in you..."

"Don't stop... harder... oh God, I can feel every little move you make..."

I started rubbing myself, circling my fingers around him, pressing him tighter. My clit was on fire, tremors shooting down my thighs. The pace built fast. I moaned louder, not holding anything back.

"I'm gonna... I'm gonna cum! Hold on!"

The orgasm slammed into me like a wave. My body arched off the bed, my pussy clenching hard, and I screamed, feeling him slip from under my fingers, drenched in my juices.

We waited a couple minutes, panting. Then he drank his dose and started growing while I shrank. Now I was tiny in his palm.

"Your turn," I said, grinning. "Put me inside."

"You sure?" he asked, already rock hard. His cock stood thick and pulsing.

"Yeah... I want to feel you from the inside. Do it."

He carefully spread the head and slowly pushed me into his urethra. It was tight, hot, slick. I could hear his heartbeat through the walls.

"Holy shit... this is insane... you're inside me, Alex..." he groaned, and started stroking himself. His hand moved fast, and I felt every pump, every squeeze.

"Faster... fuck yourself with that fist..." I screamed from inside.

He came hard. Cum erupted, and I got sucked deeper, right into one of his balls. It was dark, hot, thick in there. I tried to claw my way out but couldn't.

"Hold on... I'm gonna shrink now," he said, downing the serum. He got small while I shot back up to full size. I lay there, still trembling from my orgasm, staring at him tiny on the sheets.

"Now it's my turn to play," I whispered. I set him on the big rubber cock we'd bought for experiments. I lowered myself onto it slowly, feeling him slide in along with the toy.

"Oh... you're right at my cervix... I can feel you in there, baby..."

"Alex, I'm scared... it's so tight..."

"Shut up and enjoy it. I'm about to ride for real."

I started bouncing on the rubber cock, him buried deep inside me along with it. But then I shrank again and he grew. He grabbed me, still slick with my own juices, and carried me toward the door.

"What are you doing?" I asked, scared now.

"I called Kate. She's in on it. We're taking this experiment to three."

The door swung open, and his friend Kate walked in—tall, with a cocky smirk.

"Whoa, she really is tiny. Awesome. Come on, shove her inside you," Kate said.

He pushed me deep into his cock and immediately slammed Kate onto the bed. They started fucking like animals. I felt every thrust as he drove into her again and again. I was way deep inside his shaft, almost at the base.

"Kate... she's in there... I can feel her squirming while I'm pounding you..." he groaned.

"Deeper... fuck me harder... let her choke on our juices in there..." Kate laughed.

He came inside her hard, and I got blasted out with his cum straight into Kate's pussy. I tried to swim out, but she clenched tight.

"My turn now," Kate said, grabbing his softening cock. She started sucking him greedily, deep-throating him.

"Kate... wait... Alex is still inside you..." he tried to say.

"Don't care. I'm swallowing both of you."

She sucked faster, and he got hard again. I heard everything: the slurping, the moans, her filthy talk.

"Come on, cum down my throat... I'll swallow that little bitch right along with your load..."

He couldn't hold back and blew. A hot stream swept me straight into her mouth. I felt her swallow, and I got pulled down her esophagus. It was dark, terrifying, acidic. The last thing I heard was her satisfied laugh and his panicked voice:

"Kate... what the fuck did you do?! Alex!!!"

"She's mine now. Experiment's over, sweetheart. And you're next if you don't behave..."

By morning, I wasn't waking up. Just coffee on the table and his guilty stares into the void.