Coruscating means flashing and sparkling. An example would be the lights twinkling on the surface of a gentle sea reflecting the moon, stars or street lights.
In my mind it also means the mental effect I get from skimming on a wave of pleasure and ecstasy ( not the drugs ). I get this when I'm being fucked by a top with a long cock, and he manages to hit my inner sphincter and penetrate deep inside me. The pleasure senses seem to be doubled when this happens, and sometimes I see coruscating lights whilst enjoying the experience.
