It's Called Sweet Vengeance

After the war, there are still people waiting to seek revenge for the fall of the Dark Lord. Harry, Ron and Hermione, having had everything to do with the death of Voldemort, find themselves in another situation. Silliness, Firewhiskey, drunken kisses- all of these things seem to be a part of the agenda as the three friends face their past once again: unprepared this time around.