Sexy = Victoria's Secret
Slutty = Fredrick's of Hollywood

Sexy = Cosmopolitan spreads
Slutty = Playboy spreads

Sexy = Make-up that enhances your features
Slutty = Make-up that makes you look like a Drag Queen

Sexy = Talking about your ambitions on a first date
Slutty = Talking about your sexual ambitions on a first date

Sexy = Having the top of your lacy black panties peak out from your jeans
Slutty = Having the top of your thong rise 3 inches above your pant-line

Get the idea?