Sirius and Remus traveled to the Department of Mysteries hand in hand. Before running to Harry's side, they kissed for one last time and ran into battle.
"I love you, Remmy!"
"I love you, Siri!" Remus took on a death eater while Kingsley was at his side, shooting spells at another.
"Remus! Go help Sirius with Lestrange and and Malfoy! Harry isn't supposed to be fighting!" Kingsley knew the only place Remus wanted to be was near his fiance, who had proposed only days earlier.
"Siri! I'm coming to help!" Harry looked around after Remus said this and gave Remus a quick hug, as Remus was like a father figure to him. "Stupefy!" Sirius yelled and aimed his curse at Bellatrix. She fell from the rock which she was standing on, and fell, limp bodied, to the floor.
"She's dead!" Lucius Malfoy sprung himself towards Remus, Harry, and Sirius, and aimed a spell at Harry. He fell to the ground as the spell just grazed his face, and Sirius ran towards him. Remus grabbed ahold of both Harry and Sirius and apparated to the outside of Grimmauld Place. They entered the building and brought Harry to a couch. Remus rushed around and began to heal Harry, who was beginning to shake. Sirius sat next to Harry and begged him not to die. Not to die just yet. Harry slowly began to wake up, and Sirius hugged him with all his might.
"I don't think I could have bared loosing you to him, a Malfoy, of all people."
Remus and Sirius left Harry to sleep on the couch since he was already there, and hurried upstairs to their room. Remus had a few minor cuts and things, and Sirius healed them all calmly and gently. After they finished getting ready for bed, they climbed into bed and held each other tight.
"Wedding still on?" Sirius asked Remus as he kissed him.
"Well of course, Siri." They fell asleep soon after those words were spoken.

I know, I know. I haven't updated in FOREVER