Yaoi. Reeve's coffee addiction is causing everyone problems- and it's up to Vincent to find a way to break the habit before the habit breaks him.
A final farewell party on the Highwind in the aftermath of Meteor turns into a moment of mutual understanding between the two most recalcitrant members of the group.
Reeve, Vincent, and the mountain of 'sin' that divides them. Sex isn't a cure, but it can facilitate healing. Post-DoC, no spoilers.