"...say what?," I looked up to her face. "You heard me," said Tina. "Lick me until I cum, and then I'll fix you," I stared at my sister in disbelief. She couldn't be serious. "Heh, very funny, Tina. C'mon, you've gotta...," I didn't finished my sentence, as my 'big' sister stepped forward and grabbed me. I tried to get free, but considering that she was around twice my size now, it just wasn't happening.
"Wow, you really got weak, Matt," she said with a grin as she effortlessly shoved me to the ground. Still smiling, she pinned me down, her vagina hovering right over my face. "Argh...Tina, let me up! You're crushing me!" It was true...she seemed to weigh a ton from my perspective. "I'd suggest you get started, little bro. Otherwise I might just break your neck by accident...," the sheer matter-of-fact in her voice was the final nail in the coffin.
The girl was dead serious, and fully capable of breaking me in half now. "Time's running out..." she said in a mocking manner. "Oh...fine!," I growled, angered by my utter helplessness. She responded by lowering her crotch down until it was within reach of my tongue. "That's better. Now, get to work, little boy," I looked up at her vulva. It was already a little wet, and not from the shower she just took. What the hell did I have to do now?
I thought...