Play clothes

Clothes are worn for all occasions and here's one that' so me, clothes to wear when playing.

 T shirts are dead easy to put on and look after coming in suitably cute designs like this one.

There is nothing wrong at all in wearing shorts as a girl and as a girl I have every perfect right to wear them as part of being that girl  and as big part of my past childhood was in shorts there's no reason not to take it forward.
Shorts with no zip or button fly  being held at what would of been the hem in very girl like manner are entirely appropriate for me. Having a boy past doesn't mean I have to be in skirts and dresses 24/7.