Demily will never be depicted in a bikini bottom. This demon girl wears shorts at the beach. This is canon.
Also she can't swim, she sinks like a rock.
Demily collects shells and builds sandcastles.
I vote we give Demily floaties if she wants to swim.
I just pictured Demily staying adrift with arm floaties and a big inner tube and just being completely ecstatic about it
could she swim in lava regularly?