It's like Freaky Friday, but on a Wednesday :V

As soon as they realized they were swapped Manya forced D.D to tell Roy 'Manya' had to travel for work. They started crashing at D.D's place so they could work out how to turn back to normal. Or so Manya could work it out, Donna is pretty chill with being a model who has decent eyesight.

But when you spend a few weeks in a new body it starts to feel like yours, even if you resent it, so they're adapting.