In England, there is no such thing as a clean album.
Also, changing the lyrics to something less 'explicit' undermines the song. The lyrics are written how the writer wanted them. If he/she wanted to talk about a certain content, or use a certain word, he/she isn't going to change it just to please a few people who don't like said word/subject. It would be like 50 Cent singing candy shop about flowers. It's a ridiculous idea.