Porthos is momentarily dazed, struck by how simple and happy that Athos looks and it's all because of them. The shock gives way to something a touch softer and he nuzzles in against Athos' neck, tightening his grip on Aramis' hand because he doesn't dare let go of him or where he moves their hands to his own hip, brushing the hem of his briefs. "Part of me thought I'd only ever dream this side of you," he confesses, feeling raw to say the words. "That I'd never know if you sighed so happily or if I could ever make you laugh."