the incongruity of names
Whenever I read in a fanfic that John is moaning/whispering/yelling Sherlock's name in bed, I am always reminded of this scene from When Harry Met Sally:
Harry Burns: With whom did you have this great sex?
Sally Albright: I'm not going to tell you that.
Harry Burns: Fine, don't tell me.
Sally Albright: Shel Gordon.
Harry Burns: Shel? Sheldon? No, no, you did not have great sex with Sheldon.
Sally Albright: I did too.
Harry Burns: No you didn't. A Sheldon can do your income taxes, if you need a root canal, Sheldon's your man... but humpin' and pumpin' is not Sheldon's strong suit. It's the name. 'Do it to me Sheldon, you're an animal Sheldon, ride me big Shel-don.' Doesn't work.
Harry Burns: With whom did you have this great sex?
Sally Albright: I'm not going to tell you that.
Harry Burns: Fine, don't tell me.
Sally Albright: Shel Gordon.
Harry Burns: Shel? Sheldon? No, no, you did not have great sex with Sheldon.
Sally Albright: I did too.
Harry Burns: No you didn't. A Sheldon can do your income taxes, if you need a root canal, Sheldon's your man... but humpin' and pumpin' is not Sheldon's strong suit. It's the name. 'Do it to me Sheldon, you're an animal Sheldon, ride me big Shel-don.' Doesn't work.