The perfect cock

You think to yourself: "I wish that my cock would expand inside my mother to the size she most wants."

Your mother's scream starts low, more of a moan, but moves through several octaves before passing out of range of hearing. She's left silently screaming, her eyes watering with a mix of pain and pleasure.

You, meanwhile, experience your growth similarly. As with your mother, the sensations build beyond belief. One minute, you're sheathed in your mother's warmth. The next, her hot cunt is pressing down from all sides, squeezing you beyond belief. Your movements immediately grind to a halt. Nonetheless, you feel the telltale approach of an orgasm building rapidly, driven inexorably by this newfound tightness.

Instinctively, you pull yourself out. You are immediately struck by two things. First, your mother's disappointment at suddenly finding herself empty. Second, your new shaft. In your life, you've become well acquainted with your dick, much to your disappointment; thus, the changes are obvious.

The first is length. Although never displeased by your 7 inches, you see that you have moved into a much more generous 11", enough to make a porn star jealous. And you've widened. Where before you were a respectable inch-and-a-half across, you see another full inch of width, making it wide enough to outclass most dildos.

Just thinking about how much pleasure you can give with your new dick makes it twitch dangerously, reminding you how close you are to cumming.

Your attention returns to your mother, still recovering from shock.

"Riley. What was that?"

"Shh," you whisper, kissing her. Once again, your eyes meet hers as you align yourself with her cunt. Your mother moans as you begin to press yourself in. Unlike the first time, the going is slow. Obviously your new size evokes more resistance, but also you find yourself having to stop often to hold yourself back from coming.

Knowing how close you are, you feel that you should decide now where you're going to come.