A/N: This is the sequel to Erised. It is not required reading but will probably help.
….
Remus rather
fancies he already knows his deepest desires. They are simple, clichéd things
that he holds deep in his heart for the entire world to see – to not be a
werewolf, to be able to fly a broom without hitting trees, buildings and people
in the progress and to be liked, above all things he wants to be liked.
Remus is sure he knows himself through and through but still his heart thrills
when James tells him about the mirror. Putting pictures, life-like copies of
himself, to the half-known and almost acknowledged fantasies feels immoral,
wrong and Remus wants it because it is so.
He passes Sirius, red-faced and gaping mouthed, on his way to experience the
forbidden and knows it will be good, excellent, because of Sirius reaction.
Sirius, noise, uncalculated, unshakable is his benchmark for life – if Sirius
is so flushed by it Remus may have a heart attack.
The mirror as he approaches it ripples slightly and then he sees his
reflection.
The moon, a full imitation that makes him shrink back slightly because it is
still the moon, appears behind the him-boy of his reflection who smiles and
nods to it as if it where an old friend. Remus thinks this desire cruel; he
banishes it for he no longer wants it when the mirrors depiction of it hurts
him so much.
The moon vanishes and is replaced by Sirius who grins back at him and Remus
warms to this new desire but then Sirius steps forward, cups the reflection's
face and, Oh Merlin! Remus is sure this is wrong. The mirror Sirius is
kissing him, touching him with a gentleness Remus begins to envision is on his
skin and a blush spreads over his face, the tips of his ears burning red, but
he cannot look away.
Slowly, forgetting he is in an unlocked room known to probably all the way
James talks, he licks his fingers and slips one hand down into his trousers.
The door opens.
Remus does not hear it, too caught up in the motion, and for one moment he is
outlined gloriously – head thrown back, cheeks tinged pink, mouth open gasping
for breath.
Gasping for something, something unintelligible and almost palatable that he
needs like air and food, a first taste addiction he is now enslaved too.
"Sirius." Remus moans, hand moving faster and his desire steps forth from the
mirror, becomes whole and mortal and kisses him.
Remus opens his eyes, cries out startled into the kiss and pulls away only to
be caught palm to palm while Sirius, the real, living, breathing Sirius smiles
knowingly at him.
In the mirror the reflections twist around each other, kissing and biting and
holding, taking and touching each other and Remus wants them to stop, wants to
scream at them but they can't hear him, only Sirius who now holds him tightly
as if he fears Remus might vanish can hear him.
"Sirius, I…"
"Hot blood begets hot thoughts, hot thoughts beget hot deeds, and hot deeds is
love" Sirius mutters against his mouth and Remus, embarrassed, frightened and
delighted, consents.
They move together, inexperienced and hurried, grasping and arching into each
other. The floor is cold and hard beneath them but Remus does not care, Sirius
nestles between his legs and they rock together hastily taking warmth from each
other, taking love. It is over far too soon and they sprawl out, laughing and
breathless, before the mirror to watch their reflections but to Remus surprise
all he sees is himself, dishevelled and flushed lying with the equally
dishevelled Sirius. There is no movement from within until Sirius stretches
beside him and the mirror copies the motion. Remus does not dwell upon that,
does not want to read deeply into it and so instead he kisses Sirius and tempts
him away with the promise of inviting beds and soft touches.
He does not look upon the mirror again, he does not need to.