In honor of Gryffindor's victory in the Quidditch match, a party was thrown, during which Sirius' drunken mind decided that it was a great idea to suggest playing '7 Minutes in Heaven' and everyone naturally supported this idea.

towards the end of the game, when many were already locking themselves in the closet for the second time, Remus finally got lucky and the two of you were locked in an empty closet.