Karyn felt a little flushed, and didn't really have a good response to Jon, so she turned to open the door and head into the bathroom. As soon as she pulled the door open, however, Jon's sister Zoe fell into the room. She had been leaning with her ear pressed up to the door, trying to understand what was happening, and she didn't expect Karyn to open the door so suddenly.
"ZOE!" shrieked Jon in an almost-feminine voice, instinctively trying to hide the massive dildo in his hands.
Zoe tried to stand up, and was composing an excuse for eavesdropping, when she looked at Jon.
"Oh my God, Jon," she said, "Have you always been that tiny?"
Jon gasped, dropped the dildo, and tried to cover up his tiny, semi-erect penis.
"Get OUT of here!" he shouted at his sister, but Zoe just stared at him, her face a mixture of shock and amusement.
"I mean, holy shit, Jon, that's the tiniest wiener I've seen, except for some babies I've looked after..." continued Zoe.
Karyn's face was bright red. Her mind was racing - Jon was being humiliated in front of his sister, and she felt as though it was her fault. Trying to act quickly, she grabbed another giant novelty condom from the bed and shoved it into Jon's funnel, pushing her whole hand inside.
Jon suddenly felt a pressure in his crotch, and within seconds a massive, 15 inch erection burst forth between his hands, which were suddenly inadequate to cover his equipment. Zoe squeaked in surprise, and Jon let out an involuntary cry of "Oh fuck!" as he wavered and fell to the floor. The rush of blood into his suddenly massive cock had lowered the flow of blood to his brain for a moment, and he fainted.
"What the hell just happened?" said Zoe, looking at her naked, feminized brother lying unconscious on the floor as his huge cock stood up, straight as a flagpole, the tip wavering nearly two feet off the floor.
Zoe looked at Karyn, but Karyn was speechless. Karyn held her right arm up in the air, staring at the smooth, rounded stump in the middle of her forearm where her hand used to be. Slowly, she turned her gaze to Jon, and saw the silver ring she always wore sitting on the middle finger of his freckled, delicate right hand.
Before they could say or do anything else, they heard the noise of the front door opening, and Jon and Zoe's parents called "Hey kids, we're home early!"
