In the original text of D.H. Lawrence’s Lady Chatterley’s Lover, first published privately in Italy in 1928, the word fuck appears 26 times.
He first comes on the scene as one of the upper-class Lord Chatterley’s friends entertains the company by explaining, while denouncing sexual prudery and praising free love (with restraint), that he doesn’t “over-eat [himself] or over-fuck [himself]”; he makes his curtain call in the final moments, when the titular lover tells his now-divorced, disgraced beau that they “fucked a flame into being.”