Amaryllis night and day - Russell Hoban

The first time Peter Diggs saw Amaryllis she was at a bus stop where the street sign said BALSAMIC, although there was nothing vinegary about the place. The bus was unthinkably tall, made of yellow, orange and pink rice paper, lit from within like a Japanese lantern. That was a dream, but where this romance goes as the dream begins to intersect reality is nothing that a reader can be prepared for. 'Trust me, I'm a weirdo,' says Amaryllis as she and Peter embark on their nocturnal experimentation, which leaves no one, on quite the same footing with reality.