Epilogue
Sirius did recover after several weeks in the Hospital Wing. He never did recover, however, from James' and Lily's glares… or any threat from either them with their wands. (They never teamed up against Sirius again except for one other time- but that's a different story.)
James and Lily became good friends- and by the end of their seventh year, Lily was just as close to James as the Marauders. In fact, Lily was practically part of the Marauders (except for the pranking- no one said a thing to Lily about pranks) by the time they graduated. Over the summer, they shared their first kiss.
James spent a few years as a reserve Seeker for Puddlemere. At his last game on the field, James asked Lily to go on a date- the date where he would propose to her. Later that year, James officially resigned to become an Auror. Lily went on to be a front- line mediwitch- half fighter, half doctor, she aided both the Ministry and the Order on various missions.
James and Lily married at Hogwarts with small ceremony. They moved in with James's parents at Godric's Hollow soon after.
Remus and Peter visited when they could, but they had lives of their own to tend to. They all got together at least once a month to help Remus through his 'furry little problem' though. Sirius, despite all his claims otherwise, was quite the family man. When he was named Harry's godfather (by accident- but don't say that in front of him), Sirius virtually moved in with Lily and James. After a couple months, he was kicked out, but was let back in after about an hour.
All of them (excepting Peter) lived their lives fighting and loving, arguing and laughing, risking their lives daily and living to the fullest.