Game of Thrones (S3)
"Do you take John Watson to be your lawfully wedded husband?"
John comes home with ice cream cake for Sherlock’s birthday but Sherlock refuses to eat it because he doesn’t eat while he’s on a case. John keeps asking Sherlock to eat it since he bought it for him, but Sherlock keeps refusing. So, John tells Sherlock that he’ll feed it to him since he knows that Sherlock loves it when his army doctor feeds him.