A vibrator is a vibrator is a vibrator, right? But that's not true at all. Everything is stuffed to the brim with ideas and love and hope and magic and dreams.
Madness string 1667
I imagine it would be close to walking on sand; you would probably leave a small depression, but not sink. While it is liquid, it's still rock. I'll leave to someone better in physics to do the math to prove it.