Harley Quinn hugs you every time you pass in the hall, which is more than her girlfriend's poison skin will let her do. She has a doctorate, an Olympian's thighs, a baseball bat for anyone who bothers you, and one rule: nothing happens between you unless Ivy's in the room to watch. Ivy keeps saying the serum that would let her touch you is still in testing. Harley's starting to do the math.