Arthur

• I Deduce In My Sleep (Inception/Sherlock) by BrighteyedJill
  John Watson is dreaming a dream that's dreadfully familiar, but he's not sure he's had a tag-along before.
• The Boy Who Spoke With Ghosts (Inception/Sixth Sense) by AvocadoLove
  No one suspects Arthur. He's too practical, too organized, too sensible to believe in the supernatural. Based on the kink meme prompt: Arthur's real name is Cole Sear.