Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A guilty pleasure!

Outstanding book, engrossing, a classic! Inspiring, delicious, erotic and full of inhibition, "Lip Service" is a pillow book for the '90s. The writing is flawless and easily flows without interruption. Read it in the privacy of your home, if the puritanical type. Otherwise, take this book to a cafe or into the office lunch room and revel in its naughty revelations. Don't be surprised if this book fills your cheeks with color and makes you glance around to look at other people in a differen way. "Lip Service" is a guilty pleasure to read - share it with your girlfriends.