It is not just anatomy that receives this creative rewording. Oh, the many ways I have seen the act of sex described. Such a plethora of verbs I have never seen before: thrust, push, slide, grope, impale, cram. Yes, you read that correctly. Cram. As in, "he crammed me." (You can thank the lovely Sunny for that contribution.)
It is amazing how each author treats the same subject, some more successfully than others. There is the creative sex. The hawt sex. The gentle love making. The crazy monkey lovin’. And the terrible, horrible, no good, very bad (and incredibly improbable) sex.
So I ask you this: What was the worst euphemism you have had the misfortune to read? Who do you think has found that perfect balance in language to create an effective sex scene? Have you ever come across an author who has scarred you, nearly causing you to flee from the genre with all due haste?