From The Three Stigmata of Palmer Eldritch , a description of Roni Fugate -
"She had a narrow, erect body, a truly superb carriage...and small, up-jutting breasts with nipples no larger than matched pink peas. Or rather matched, pink pearls..."
Not the first description of her. In fact, PKD (via the character Barney Mayerson) notices her eyes first.