Amanda kissed Kyle goodbye at the door and watched him drive off to work. As soon as his car was out of sight, she dashed back to their bedroom, stripped naked, and eagerly restored her penis. If only Kyle suspected! She had been doing this with increasing regularity lately, Something about the sight of that enormous rod jutting out from between her otherwise feminine thighs, so firmly and insistently, aroused her on a level that she had never experienced as a woman. She laid down on the bed and concentrated on her penis, making it grow even larger and thicker as she grasped it in her small female hand. She normally kept her pubic hair trimmed into a demure landing strip, but now she let it grow into thick, luxurious, masculine curls as she stroked herself into arousal. She let her imagination get carried away, and watched in the mirror across from the bed as she let it grow ten inches, eleven inches, a full foot long, with a pair of large hairy balls swinging below it.
At long last, she came violently, a thick rope of cum jizzing in an arc onto the opposite wall. Amanda took a few moments to catch her breath and recuperate from her exertions, then sat up and caught her startled reflection in the mirror. She had changed more about her appearance than she realized: besides her massive male equipment, she had subtly masculinized the rest of her body as well. Her muscles had more definition—her arms and legs were slightly larger and more toned. Her hands and feet were larger, with thicker fingers and toes. Her jaw was firmer, her skin a little tougher, her shoulders broader, her breasts flattened into strong pectoral muscles. She stood up and noticed that she had grown as well, from her usual 5'6" to something closer to six feet. Her hair was still long, but as she gazed at herself in the mirror, she tried an experiment and gave herself a very short, tomboyish cut. She giggled incongruously at the sight of herself: if she hadn't known better, she would have mistaken herself for a man.
At that moment, her phone beeped, signalling she'd just received a text message. She picked up the device in her now-clumsy hands and saw that it was from Kyle: "Luvved seeing u with a cock," it read. "Cant get image out of my mind! Lets play more when i cum home!"
Amanda grinned. "Thinking same thing," she typed, before turning once more toward her reflection and saying to herself, "Now, where were we...?"