Splitting in two had been a little strange. If he thought "I'm going to split in two and then go sit down," he would split in two, go sit down, and more likely than not, try to sit in the exact same place as the other one. This had actually happened and Jon ended up stumbling right on top of Jopan.
At that point, Jon recombined and tried again. He had to learn to deal with the splitting power if he was going to use it properly. He walked over to a chair and planned to split, then sit down. This time he decided to pay more attention to what he was doing. There was no stumbling, but there was the awkward moment you usually get when you're trying to sit down in exactly the same place as someone else... both people hesitate, by chance one person moves slightly before the other person, and eventually one of them does sit down. In this case Joan finally sat down and Jon looked at her rather sheepishly.
Jon's next try was to think "I'm going to wait to see if I'm a boy. If I am, I'll sit down." He split up. The boy sat down and the girl felt her breasts and stopped. The memory of it was strange once Jon recombined--he remembered planning to sit down--and then both doing it and not doing it. Both memories were equally real.
Jon locked his door and took off his clothes. Then he said to himself "I'm going to split in two and check to see if I'm a girl. If I am, I'm going to get on that bed and masturbate." He split in two and from the point of view of his guy half, nothing happened. After rejoining again and remembering Joan's version as well as Jon's version, he realized what was wrong: Just saying "I'm going to masturbate" as if he was commanding Joan to do something didn't help. He was Joan. Joan didn't do what he wanted because she was obeying commands, she did what he wanted because they both wanted the same thing.
It wouldn't happen unless he really decided to do it. He couldn't cheat--he had to, genuinely, plan that if he became a girl he would masturbate.
Jon split in two yet again. When he did, he realized that he was the girl, once again. Okay, she thought. I have to ignore the other 'me', get to that bed, and play with myself. Let's try to forget that I'm being watched, because it's not really someone else watching me. It's just another part of myself.
She pulled a pillow up, lay down, unzipped her pants, closed her eyes, and stuck her hand down in. Which may not have been the best of ideas since she couldn't see what she was doing, but this way she could ignore Jon watching her. She didn't know how to masturbate as a girl, but had some idea of the female anatomy, and felt her clitoris and touched it. She tried to put a finger down her vagina, which didn't do as much as she had hoped. It felt sort of comfortable, but not really satisfying. She tried to think of magazine pictures, which made her a little hornier once she could ignore the "I have a guy watching me" part.
Meanwhile the guy was watching. Watching a girl do this was certainly making him horny. He thought, last time when I was the girl I was too nervous. He tried to figure out how he could calm himself down. "Let me get those pants off," he said.
The girl stopped. Reminding her that Jon was there defeated the purpose of doing this. She had to admit she was feeling more relaxed about her girl's body now that she was masturbating.
"Uh, no, go ahead," said Jon. He helped her with the pants.
"I gotta stop this," she said. "I've never had anyone touching me or watching me when I played with myself!" Jon hesitated and said nothing. Soon Joan was doing it again and moaning a bit.
Seeing that her eyes were closed, Jon quickly got his own pants off and said "Move your legs. Not that way." When Joan did, he sat on the bed, rolled early onto Joan, and plunged his own penis into her vagina as best he could, considering he wasn't really experienced, didn't exactly have much chance to aim, and was really doing it too early. Somehow he made it. He couldn't believe he was doing this.
Joan let out a very large moan but didn't pull back. Suddenly she realized it felt great to be penetrated in this way that was really just fancy masturbation for one-become-two. She enthusiastically kissed Jon and the two explored each other's body....
Afterwards, Joan thought "That's it. This will be awkward if I sit around staring at Jon." She rejoined.
Jon was now just Jon again. The two sets of memories in his head were just like when one sat down and one stayed standing, except they were about something far more intimate. It was masturbation, sort of. But it was really also getting intimate with another person. He remembered doing it with a girl (as the guy)--and he also remembered doing it with a guy (as the girl). He remembered two separate kinds of orgasms happening at around the same time. The idea of doing it as a girl, with himself, didn't have the fascination it seemed to have back then. But he had wished that the girl would find it enjoyable. He wasn't the girl now.
"But I did it," he thought. "And nobody else knows." He still had the power, of course. It didn't even need to be used sexually. He could use it if he just needed to be in two places at once, or to play two player games, or to do homework twice as fast by working on two assignments at the same time. Or he could split, and the boy could go to school, while the girl could skip school. If he made a wish that people wouldn't think it was strange, there were even more possibilities. What else could such a strange power be used for?
