Playboy Playmates Centerfold What The Difference Between A Playmate, Playboy Bunny, And Hefs Girldfriend, And Centerfold?

What the difference between a playmate, playboy bunny, and hefs girldfriend, and centerfold? - playboy playmates centerfold

as in the show "Girls Next Door, which always speak of things that I always wanted, what all means KNO. and that Holly Bridget and Kendra?