"Karyn, we got to fix this" jon said as he bent forward to pick up the stone. But before he could wish Karn spoke through him. "I wish that for as long as we share a body we both will need to agree on a wish to make one."
"Why did you wish THAT!" Jon said
"two reasons" said Karyn. "one, everyone will see this as normal which would be fun. and two. It'd be so fun dating guys and wearing my clothes in your body."
She took a step towards her old body to get the clothes and did an awkward split as her other foot went the other way as jon tried to go away from it. Jon still has some control too it seems, this would be awkward. Be he'd have to make some compromises with a girl in his body.
