'Dave' walks past his desk he trips over a plug wire and knocks over a bunch of papers and the pen! The pen rolls right to 'Janet' and she quickly rights "Anything dave wrote since my last wish will stop working and he will completly obay me."
'Dave quickly tries to rush 'Janet', but 'Janet' quicky yells "Stop!" 'Dave' quickly stops and looks surprised until he sees what she wrote on the paper.
'Janet' quickly rights on the paper "I will revert back to my own body and Janet to hers and will be right back were we were right before I made this happen she won't remember any of this"
The scennery swirled for a few seconds. He was then staring at Janet. "Do you need me for anything else?" she asked. "No thats all Janet" he said She left the room.
"This is a very powerful tool" Dave said to himself. "I need to make sure somthing like that doesn't happen again" Dave though for a moment and then wrote "This pen will appear in my hand when ever I will it to, no matter what body or form I may be in"
To test this he put the pen on the desk an imagined it in his hand. It appeared back n his hand. "awsome!" he said "Now, what to do next..."