Decide on who else you're going to turn into suits

Your family had been just you and your mom for quite some tine and she had always given you whatever freedom you wanted. It seemed like turning her into a skin would be overkill, especially when you had no interest in becoming her. But this left you with a bit of a dilemma. It was clear that your house would give you the most freedom to use the pen without suspicion, but Davids house had more potential teat subjects including Davids older sister, Tina, who Jimmy had a crush on for ages. Thinking about having the chance to make Tina into a suit settled it. You'd go back to David's house and use his family as your test subjects! This was also convenient for you since it meant that you wouldn't have to make David himself again for a while and while the skin gave you none of David's memories, the two of you were friends long enough that you were confident you could act as him without anyone really noticing.

You were practically laughing in excitement as you put David's clothes back on and then grabbed your old phone and the box which contained both pens.

You grin mischievously as you arrive at David's house, ready to make a test subject out of whoever happens to be home.