That wonderful rapid pace soon pushed me over the edge, and Mom's eyes flashed when she felt me swelling inside her. Abruptly, she broke off the kiss and gasped in protest.
"Billy! You can't come inside me! I'm your mother! What if you get me pregnant?"
That stopped me cold. I stared into her eyes in disbelief and stopped thrusting instantly. It never occurred to me that there was any possibility of that happening. Mom's hands pushed insistently on my chest, and I managed to pull out of her. Then I caught the teasing gleam in her eye and knew it was still part of the game.
"I can't believe I let you f**k me," she groaned, "But I feel like I would be an even worse Mommy if I just teased you." She shook her head and genuinely looked like she could not believe it when she added, "I can't b
