Sirius isn't too overly fond of felines. Marauder friendship fluff.
"Sirius," Remus breathed, a bit taken back by the sheer grief and pain he saw in Sirius's eyes. He brushed some stray pieces of hair away from Sirius's face and roughly wiped the tears away with his thumbs. "Sirius what happened?" Sirius/Remus friendship angst. James/Lily death.
Three kisses that were wildly different and yet monumentally important in their lives. Three kisses that would define their relationship throughout their life, and that would linger even after they were both gone. Remus/Sirius angst and fluff.
The locket has more of an effect on Harry than he thinks. What happens when it causes him to lash out at his best friend? Harry/Hermione friendship and comfort.
"How come you've never made any…" Lily paused here, allowing her eyes to flicker away from Lupin's face for a brief moment as she searched for the right word. "…Advances. On me." Marauders adorable friendship fluff stuff. Remus/Lily friendship, Remus/Sirius.