Nate decided on becoming the opposite sex, something he'd always thought about curiously. As he was typing what he'd look like as a woman, he started getting very horny just thinking about it. His penis stretched out to full length and he couldn't ignore the urge to masturbate any longer. He put the computer in sleep mode and ran back to his room pulling his pants down and rolling a condom over his long appendage. He sat in bed and began his quick masturbation session, working his penis until he finally let out a giant load into the condom. After he finished panting and cooling off, he tied off the condom and inspected it further. "Holy shit, I've never had that much come out before!" he thought, "it must've been a while since my last time." He threw the full condom in his trash can and went back to the computer, finalizing his changes and finally clicking enter. Immediately he felt tingling sensation over his entire body, feeling so warm that he took off all of his clothes. He felt his waist shrinking, all of his features becoming smoother, body hair disappearing completely, and gigantic mounds growing on his chest. The penis he was pounding so hard just minutes before was now shrinking and inverting inside his body, sensations filled his insides as they twisted and churned to make it a proper female body. Nate felt his hair lengthen and his hips widen, and finally it was complete. Nate was no longer a man, but a woman. A woman with gigantic breasts and an ass to match, a woman who would make any man harder than they'd ever been. She stood up and sighed happily, sitting back at the desk still completely naked. "That was... Amazing! This feels so much better than being a man..." she said as she rubbed her breasts softly. As she came down mentally from the thrill of transformation, she thought to herself, "Natalie sounds like a good name, I'll call myself that from now on..." As Natalie say there admiring her new body and all the new sensations she was feeling, she suddenly had an interesting idea.