Swap between the two of you

You got back to your flat and finished off packing for the week away, keeping the remote on the bedside table. Rebecca stayed in the room with you chatting away, you not aware of your new hair, Rebecca not aware that her current hair was originally you, and both of you enjoying hearing your own voices with the wrong accent talking back to you.

“Hey, David, can we do one more random change between us before I go home?” Rebecca asked.

“Why not.” you said, holding the remote. You target yourself and Rebecca and both went over to the mirror to make the swap.

Pressing random you watched as nothing physical changed.

“Oh” Rebecca said, shifting the weight on her legs.

“Oh indeed” you said, crossing your arms. But lower than usual.

“Wait a moment” Rebecca said, walking across the room and back, “I never used to walk like this!”

“And Im sure I never used to cross my arms like this” you said.

You both sat down on the bed, Rebecca with her legs spread out and you with your legs crossed in a very ladylike manner.

“I think we have swapped mannerisms” you suggested.

“Weird” Rebecca said, leaning back on the bed in a way you used to.