Gryffindor had won the quidditch match by a mile. So of course the marauders through a party, all gryffindors were invited, along with a few others from different houses.

Sirius just got off the table after having given the whole room his rendition of ‘mamma Mia’ he downed a shot of fire whiskey when James approached him “pads, lily and I are heading upstairs! Find someone to have some fun with if you know what I mean!” Wiggling his eyebrows at him he and lily quickly went upstairs.