My sister, now pretty much taking up all of the space in her room, shifted a little bit. My heart nearly stopped as she did, since she's so much more bigger than I was. I seemed like a child to her at this point. Then I saw her eyes slowly open. I held my breath as I saw her pupils, now the size of softballs, pointed directly at me.
"M-Matt?" she asked in a low, loud voice. Her vocal chords where massive at her size.
"H-Hi Tina." I managed to squeak out.
"Why do you look so small?"
I thought fast to try and come up with a reason.
"You're dreaming, Tina. This is really all a dream."
"Really?" asked Tina, beginning to yawn. As she yawned, she opened her mouth wide and for the first time, I started to feel a little bit uneasy.
But also, incredibly turned on.
"Yes, really," I said. She gave me a brief (huge) smile and closed her eyes again. Within minutes, she began to breathe evenly, meaning that she was fast asleep. I breathed out. That was close.
I took a bit of time to really soak in the image of my massive, naked sister, who at this point was surrounding me in almost every direction. Her head and part of her torso resting on the bed as her gigantic breasts jut out over the side, almost looking at me. Her slim abdomen reaching over the foot of the bed to her surprisingly wide ass, plump and resting on the floor in the far-right corner of the room. Her smooth, fair thighs, now at a small angle to her torso, pointed her knees at me; in the valley between, I saw her bush, neat and trimmed. I began to feel the blood rush to my nether regions. To the immediate right of me, I saw the rest of her legs and what was left of her pants, tightly clinging to her ankles which were just thin enough to keep from tearing them on.
I realized that I wouldn't get another chance like this again, so I walked up to her torso. Her breathing was loud and steady. I began to sweat as my penis slowly began to swell. This must be how a mouse feels when it's near a cat. I slowly extended my arm and rested my hand on her giant nipple. It felt fleshy, soft, and warm. I began to squeeze a bit, eliciting a soft, erotic coo from my sister.
Feeling encouraged, I...