First find her ripely inconsolable. She must be beautiful (squeeze the round end -- does it yield perceptibly without deformation?), yet she must think herself ******. The following factors produce this effect: a society which denigrates her, a family which ignores her, fairy-tales which tell her she fulfils herself upon belonging to a man. Once you have selected her, you must purchase. Pay with attention, time, care and compliments. Do not spend too much -- you might suffer buyer's remorse later. Then, before she is sure of herself, make demands. Tell her that her utility is based on your own convenience, and slowly browbeat until soft and creamy.