It's inconsiderate to tag along with a couple
Lee and Jane are going to the movies for a romantic evening, but Jane's little brother Danny wants to go too.
Danny wants to see a film.
Danny wants too see a film, but sees that Jane and Lee want to be alone, so he rents a movie at home.
Danny invites himself to go with Lee and Jane.
Lee and Jane have a wonderful night out and Danny enjoys his movie.
Lee and Jane bring Danny out of guilt and their romantic night is spoiled.