She grinned and said, "... and I need a little more."

I found a dead-end street in a desolate rural suburb, and parked next to some trees that would give us some privacy. The backseat was full of my sister's stuff so we'd have to fuck in the passenger seat.

She grinned up at me as I stood between the open door and the vine-covered oak tree to start disrobing.

"You're a brat," I told her. "You know that, right?"

"I'm your brat, big brother," she said. She reached out and grasped my cock, beginning to stroke it, and said, "and I DO mean BIG."

She stood next to me...