For faynia, who asked for Peter/Edmund, sword fight.
Improbable Is Not Impossible
Rather to Edmund's surprise, swordfighting came naturally. He rarely won, true, but most of the time he practised with Peter, and Peter was taller and heavier and older.
Too, Edmund was often distracted when they fought, in ways that he was not if he crossed swords with – say – Mr Tumnus. He could not help but notice how Peter's muscles moved under his shirt, or the way Peter brushed sweaty strands of hair from his forehead as he and Edmund circled.
And if Edmund imagined Peter's hands on him at night, instead of his own – well, stranger things had happened already.