Whilst I agree with the people above, I actually do enjoy swearing in a book. It gives me some weird thrill or rush of adrenaline when a punchy line is inserted. But perhaps I'm just some low brow troglodyte
It has it's time and place. But if you enjoy a good old F-bomb check out the The Lies of Locke Lamora, first book in the
Gentleman Bastard series by Scott Lynch.