Experimentation & Shaving

Seeing the abnormal thick brown mass that covered Jim's dick you felt the need to shave it off, if you wanted to admire the full length of it you can't have some pesky hair getting in the way of the length now can you?

Besides you could experiment with your powers, specifically if the changes you made to someone else's body carry over when you return it.

And so you spent half an hour getting your crotch area smooth and hairless, now with that done you took one of your boxers and returned Jim's dick.

Now that you confirmed you had your dick back you swapped it again and confirmed that whatever change you made to someone's body was permanent as the hairless dick of Jim was on your body once again.