Mario Vargas Llosa – Los cuadernos de Don Rigoberto

Vargas Llosa explores virtually every sexual fetish in this novel. Each chapter consists of an erotic fantasy of Don Rigoberto about his estranged wife, Lucrecia; an open letter to convicted fetishists and editors of nudie magazines; Lucrecia getting a visit from her son, Fonchito; and an anonymous love letter sent to either Rigoberto or Lucrecia.
Although the book didn't have the same impact on me as some of Vargas Llosa's other novels, he's definitely skilled at writing erotic (as distinct from pornographic) fiction, and at writing, period. The uninitiated may want to try some of his other novels first, though.